Create a hypothesis for the statement, "Tomato plants develop more quickly when planted in compost."
According to the ANOVA test, organic fertilisers considerably boosted the vegetable production in this "tomato-celery-tomato" system. This may be the case because applying organic fertiliser can boost soil organic matter, which in turn boosts yields26,27. Create a hypothesis for the statement, "Tomato plants develop more quickly when planted in compost." For tomatoes to flourish, two essential minerals must be present: phosphorus, which encourages the growth of flowers and fruit, and calcium, which guards against blossom end rotting (that dreaded black sunken hole on the flower end of your calcium-deficient tomatoes). Nitrogen is a nutrient that plants require for growth. It is anticipated that tomato plants cultivated with nitrogen fertiliser will develop more leaves, grow faster, and become taller than tomato plants planted without nitrogen fertiliser. The primary findings revealed that: (1) Compared to conventional composting methods, vermicompost or chicken manure composting more successfully stimulated crop growth, comprising stem diameter & plant height.
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Tomato plants exhibit no difference in growth rate when planted in compost rather than in soil." this is the best null hypothesis that can be derived from the supplied hypothesis. Here option A is the correct answer.
The null hypothesis is a statement of no relationship or difference between the variables being studied. It is the opposite of the research hypothesis and is often stated as "there is no difference" or "there is no relationship."
In this case, the researcher's hypothesis is that tomato plants exhibit a higher rate of growth when planted in compost than in soil, so the null hypothesis would be that there is no difference in growth rate between the two conditions (compost and soil).
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All of the following would likely reduce the severity of inflammation following CFA use EXCEPT:
using multiple smaller volume injection sites instead of fewer larger volume sites.
maintaining sterility of the antigen solution before it is mixed with the adjuvant.
minimizing the mycobacterial concentration.
using a dilute antigen solution to increase the volume of the CFA/antigen mixture.
maintaining sterility of the antigen solution before it is mixed with the adjuvant
maintaining sterility of the antigen solution before it is mixed with the adjuvant, this would not reduce the severity of inflammation following CFA.
adjuvant is defined as the treatment that enhances an existing medical regimen and also maximize the effectiveness, it given after the primary treatment.
CFA is a mineral oil which contain suspension of either whole/pulverized heat killed mycobacteria, which emulsifies with a solution of antigen to form a water in oil emulsion, used for treatments of patients.
There are many other options of tackling with inflammation, it is nonsteroidal drugs or over the counter drugs like aspirin or Advil or naproxen
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nts
am Proctor
Question 2
Animals have albinism if they are unable to produce the molecule melanin. The protein responsible
for making melanin is tyrosinase.
If this is the normal sequence for a section of the mRNA transcript for tyrosinase:
GCUGAUAGUCCU
And a rat has this version of the sequence:
GUGAUAGUCCU
Is this rat likely to have albinism? How do you know?
Second letter
First letter
U
с
A
UUC.
UUG}Leu
CUU
CUC
CUA
CUG
UCU
Phe
UCC
Leu
AUU
AUC lle
AUA
с
UCA
UCG
CCU
CCC
CCA
CCG
ACU
ACC
ACA
AUG Met ACG
GUU
GCU
Pro
UACJ
Ser
Thr
A
UAU Tyr UGC Cys
UAA Stop UGA Stop
UAG Stop UGG Trp
G
CAUT
CACJ
CGU
His
CGC
CAGGIn CGG
AAU
Asn
Arg
AGC Ser
AAGLYS AGG Arg
GAUR GGU
UCAG
DUA DUA D
10 pts
Third letter
Albinism is the result of cells that can't produce melanin, the pigment needed to color skin, scales, eyes and hair.
What hormone causes albinism?Albino people can have very little melanin or no melanin at all. Their coloration and vision may be impacted by this. Albinos typically have white or extremely light blonde hair, while some also have brown or ginger hair. How much melanin their body generates determines the specific colour.
Despite producing their own melanin, animals are unable to produce a large number of other colours. Although plants can create a variety of pigments, many animals get their colour from the food they consume. Many birds' striking colours don't come from the birds themselves; rather, it comes from the food they consume.
Melanin is created by melanocytes, specialised cells found in the skin, hair, and eyes. A alteration in one of these genes may result in albinism.
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Emergent properties are found in some biological systems. Which of the following properties is necessary for emergent
properties to occur?
A. The system Is evolving
B. The system is complex
C. Cells or tissues are differentiated
D. Cells or tissues interact to function as a unit
The property is necessary for emergent properties to occur if the system is complex.
Thus, the correct option is B.
Emergent properties arise when the interaction of individual component produce new functions. An example of emergent properties is multicellular organisms. Multicellullаr orgаnisms аre cаpаble of completing functions thаt unicellulаr orgаnisms could not undertаke – this is due to the collective аctions of individuаl cells combining to creаte new synergistic effects.
In multicellular organisms, the complex system is:
Cells may be grouped together to form tissue.Organs are then formed from the functional grouping of multiple tissues.Organs that interact may form organ systems capable of carrying out specific body functions.Organ systems collectively carry out the life functions of the complete organism.For more information about emergent properties refers to the link:
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Changes in the external environment alter the integrator which is detected by the , and that information is sent to the sensor: controlled variable controlled variable: sensor controlled variable: set point set point:controlled variable error signal:controlled variable
Homeostasis is a concept. Changes in the internal or external environment are detected by a sensor or receptor. Peripheral chemoreceptors, for example, detect variations in blood pH.
Receptor — a place within the body that detects or receives stimuli, recognizes deviations from normal, and transmits messages to the control center.
Regulated variables are physiological variables that are kept at a constant level, such as blood glucose or core body temperature. Controlled variables, on the other hand, are the activities or rates of processes that contribute to the stability of regulated variables. A change in the internal or external environment is referred to as a stimulus. A stimulus is detected by a receptor.
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the term refers to a transport process involving pseudopod formation and amoeboid movement, whereas the term refers to a transport process involving the formation of a furrow or depression in the plasma membrane and the formation of a vesicle.
The term refers to a transport process involving pseudopod formation and amoeboid movement is phagocytosis, whereas endocytosis refers to a transport process involving the formation of a furrow or depression in the plasma membrane and the formation of a vesicle.
Endocytosis аnd phаgocytosis аre two trаnsport mechаnisms thаt tаke mаteriаls into the cell. Phаgocytosis is а form of endocytosis. During both mechаnisms, mаteriаls аre tаken in inside vesicles. These mаteriаls include cell debris, enzymes, deаd cells, pаthogens, hormones, nutrients, etc. The opposite mechаnism of endocytosis is exocytosis, which involves the removаl of mаteriаl from the cell enclosed in vesicles.
The mаin difference between endocytosis аnd phаgocytosis is thаt endocytosis is tаking in of mаtter into а living cell by forming vesicle by the cell membrаne whereаs phаgocytosis is tаking in of lаrge solid mаtter into the cell by forming phаgosomes.
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Should a supervisor be willing to accept constructive criticism from an employee they supervise?
A.
Yes, but only if the person being supervised has worked there longer than the supervisor.
B.
Maybe, if the supervisor and the person being supervised have worked together for a long time.
C.
No. It is the supervisor’s job to give constructive criticism, not an employee’s job.
D.
Yes. Giving and receiving constructive criticism can eventually make the workplace more positive.
A key strategy for encouraging your finance and accounting team members to continuously lifting the bar on their performance is constructive criticism, which is defined as courteous.
What is Constructive criticism?Employees in the millennial and generation z generations, in particular, look forward to receiving this type of feedback from managers on a frequent basis in order to advance meaningfully in their careers.
Constructive criticism is difficult to convey effectively, though. Managers have a delicate balance to strike between highlighting the good and guiding staff in how to resolve performance issues.
The fact that various employees react differently to feedback doesn't make the process any simpler. Most workers probably accept such criticism with grace.
Therefore, A key strategy for encouraging your finance and accounting team members to continuously lifting the bar on their performance is constructive criticism, which is defined as courteous.
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which of the following are required for dna replication? 1. dna polymerases 2. dna ligases 3. a template 4. nitrogenous bases. Select one: O a. Choices 1, 2, and 3 are correct O b. Choices 1 and 4 are correct. O c. All choices are correct. O d. Choices 1 and 3 are correct. O e. Choices 2 and 4 are correct
Dna replication are required for polymerase and ligase. It used as a template for assembling a leading strand of reforming and nucleotides a double helix. It is required for the covalent joining of the incoming nucleotide to the primer.
The important properties of DNA replication are the semi-conservative synthesis of the cellular double-stranded to produce two double-stranded daughter molecules. It sustained dna replication which requires many other enzymes and proteins which assemble into a large complex called a replisome.
It occurs in all living organisms acting which is the most essential part for biological inheritance. DNA replication referred to the biological process of producing two identical replicas of DNA from one original DNA molecule.
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Are genetically modified crops more useful than naturally available crops, discuss?
Answer:
In terms of usefulness, yes because genetically modified crops can be modified to grow in a higher abundance, which allows for a much higher yield and sales when you're a farmer. At the same time though these types of crops typically aren't as healthy as Non GMO crops, so, many people make the effort of purchasing Non GMO crops. So yes they are more useful but they aren't as healthy.
Explanation:
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which of the following statements about milk is false? group of answer choices to break down and digest the lactose found in milk, humans need the enzyme lactase curdling of milk is dependent on the casein protein butter is made from milk with high levels of protein milk appears white due to the large fat globules and other large particles
false. Among the supplied possibilities, the erroneous statement is "butter is manufactured from milk with high quantities of protein." Butter is produced by churning cream, the high-fat component of milk.
Centrifugation or leaving the milk to stand to allow the cream to rise to the top separates the cream from the milk. The fat molecules in the cream coalesce and create butter during the churning process. The resultant butter has a low protein content since the majority of the protein is located in the liquid component of milk, known as skim milk. All of the following statements are correct: Humans require the enzyme lactase to break down and digest the lactose contained in milk. The curdling of milk is determined by Casein is a protein. Because of the huge fat globules and other large particles in milk, it appears white. It's also worth mentioning that milk may originate from a variety of animals, including goats, sheep, camels, and even water buffalo. Milk's nutritional content and characteristics differ based on the species from which it was obtained.
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A child holds a red ball. Why does the ball look red?
Answer:
The ball looks red because it absorbs all the colors of the visible light spectrum except red...
The ball looks red because the only colour it is not absorbing is red it is reflecting red colour, all other colours are being absorbed and thats why the ball is looking red... :)
Lung cancer cells do not respond to the signal that regulates the growth of normal lung cells. Which of the following processes is not being appropriately regulated in the cancerous count that allowed for uncontrolled cell growth?
A. The cell cycle
B. Fertilization
C. Meiosis
D. Respiration
Answer:
A. The cell cycle
Explanation:
The process that is not being appropriately regulated in lung cancer cells, allowing for uncontrolled cell growth, is the cell cycle (Option A).
The cell cycle is the series of events that take place in a cell leading to its division and duplication (replication). These events can be divided into two main stages: interphase (G1, S, G2) and the mitotic phase (M).
In normal cells, the cell cycle is tightly regulated by a variety of mechanisms that ensure that cells divide only when necessary and that DNA is replicated and divided accurately. Cancer cells, however, lose this regulation, and they can divide and replicate uncontrollably. This uncontrolled cell growth is a key feature of cancer.
Fertilization, meiosis, and respiration are not related to cell growth regulation. Fertilization is the fusion of male and female gametes to form a zygote. Meiosis is the process of cell division that leads to the formation of haploid cells. Respiration is the metabolic process by which cells convert nutrients into energy.
Amino acids, lipids, nucleic acids, and starches are all macromolecules that are found in plants. What is the most likely source of the building blocks of these structures?
A. Organic molecules formed in biochemical pathways like the Calvin Cycle
B. Organic molecules that are consumed by autotrophs
C. Organic molecules formed by the synthesis of polymers
D. Organic molecules synthesized by heterotrophs
Answer:
A. Organic molecules formed in biochemical pathways like the Calvin Cycle
Which condition is evaluated at the G2/M checkpoint?
A.)Precise replication of DNA
B.)Proper spindle formation
C.)Proper spindle assembly
D.)Adequate cell size
Option B, The condition that is evaluated at the G2/M checkpoint is proper spindle formation. the cell will halt the cell cycle and repair the damage before proceeding.
The G2/M checkpoint is a control point in the cell cycle that is responsible for evaluating the conditions that are necessary for the cell to proceed into mitosis. The proper spindle formation apparatus is a structure that forms during interphase and is composed of microtubules that help to separate the chromosomes during cell division. At the G2/M checkpoint, the cell checks that the proper spindle formation apparatus is properly formed and that the chromosomes are properly aligned on it before initiating mitosis. If the proper spindle formation is not properly formed or the chromosomes are not properly aligned, Other condition like precise replication of DNA(A) is evaluated at the G1 checkpoint, proper spindle formation is evaluated at the prophase and Adequate cell size(D) is evaluated at the G2/M checkpoint as well.
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Which of the DNA strands is correctly paired (please help!)
Answer:
First one
Explanation:
A binds to T and C binds to G
When an organism joins a new population, its genes become part of the new population's pool. How does this gene flow affect populations? Question 1 options: Gene flow between populations has no effect on the gene pool. Gene flow between populations increases genetic diversity over time. Gene flow increases the chance for reproductive isolation which can cause new species to form. Gene flow between populations decreases genetic diversity over time.
Whithin a single population, as migration and successfull reproduction occur, Gene flow between populations increases genetic diversity over time. Option B.
What is gene flow?
Gene flow is an evolutive force, together with natural selection and genetic drift.
Gene flow occurs in populations that express migration. This is, individuals from one population migrate to the other and vice versa.
For gene flow to occur, migration is not enough. Successful mating events must also occur, through which individuals from one population get to mate with individuals with the other population, and produce fertile offspring.
This is how the following generations will get genes from both populations.
Gene flow has the opposite effects of genetic drift.
• It increases variability within each population
• It reduces genetic heterogeneity between populations
Different populations experiencing gene flow tend to be more similar genetically because they are interchanging genetic material.
Assuming we are making reference to a single population, the correct option is B) Gene flow between populations increases genetic diversity over time ⇒ within a population.
As new individuals enter the population and reproduce, new genes are part of the population genome, increasing its diversity.
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The ______ produces plasma-membrane-associated proteins, which are then sent to the ______ for sorting and processing.
Plasma-membrane-associated proteins are produced in the rough ER and subsequently transported to the Golgi complex for processing.
What is plasma-membrane?The plasma membrane, also referred to as the cell surface, is a membrane that exists in all cells and separates the cell's internal environment from the outside world. Bacterial or plant cells have a cell wall attached to the cell membrane from the outside. The plasma membrane is referred to as a selectively permeable membrane due to the fact that it regulates how substances enter and leave the cell. It suggests that although the plasma membrane allows some substances to traverse it, it also blocks the passage of others.
How is plasma membrane formed?Between the phospholipid membrane's hydrophobic tails, cholesterol is folded. On the extracellular surface of the membrane, carbohydrates have been discovered to be bound to lipids or proteins, resulting in the production of glycolipids or glycoproteins.
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According to the USAUDIT-C, harmful alcohol consumption is indicated by scoring above which of the following thresholds?
According to the USAUDIT-C, harmful alcohol consumption is indicated by scoring above 7 for males and 5 for females.
The Alcohol Use Disorders Identification Test (AUDIT-C) is an alcohol screen that can help identify patients who are hazardous drinkers or have active alcohol use disorders (including alcohol abuse or dependence).
In 1989, the World Health Organization (WHO) created the Alcohol Use Disorders Identification Test (AUDIT) as a quick and easy way to check for risky and harmful drinking. The AUDIT has grown to be the world's most popular alcohol screening test since its launch. Now that the AUDIT has more than a quarter century's worth of validation research and useful applications in a variety of international medical and research settings (Allen, Litten, Fertig, & Babor, 1997; Babor & Robaina, 2016). The AUDIT has recently been modified for use in the US (Centers for Disease Control and Prevention [CDC], 2014).
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scientist can use the amino acids sequence in proteins to determine the evolutionary relationships of primates. of the following which primate is least closely related to humans
Scientist can use the amino acids sequence in proteins to determine the evolutionary relationships of primates therefore the primate which is least closely related to humans are monkeys.
What is Evolution?this is referred to as change in the heritable characteristics of biological populations over successive generations.
Researches done by scientists determined back in 2005 that chimpanzees share somewhere between 98.6 and 99 percent of our DNA while monkeys had the lowest DNA percentage when compared to gorillas and orangutans.
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The question is:
scientist can use the amino acids sequence in proteins to determine the evolutionary relationships of primates. of the following which primate is least closely related to humans
ChimpanzeesGorillaOrangutanMonkey.When performing an antibody panel, which one of the following antigens will be destroyed by enzyme treatment?
A) Fya
B) Jka
C) E
D) Lua
Fya is the antigens that will be destroyed by enzyme treatment. Fya and Fyb antigens are destroyed when the red blood cells are treated with applicable attention of the proteolytic enzymes ficin, papain, and α- chymotrypsin.
When used in the recommended fashion, this reagent will beget the cohesion( cementing) of red blood cells carrying the Fya antigen. Enzyme treatment enhances the reactivity of alloantibodies to the Rh and Kidd antigens and antibodies to carbohydrate antigens( ABO, H, I, P, and Lewis). Enzyme treatment most generally destroys reactivity to the MNS and Duffy antigens.
Anti-Fya is the most common Duffy antibody set up most constantly in the serum of Caucasians immunized by blood transfusion. The Fya antigen is about 40 times lower immunogenic than the K antigen of the Kell system.
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Which of the following accurately represents the order of complexity for the components of the body, from least to most complex?cells, tissues, organs, organ systems
The following accurately represents the order of complexity for the components of the body, from least to most complexare are cells, tissues, organs, organ systems
The cell is the smallest unit that makes up the body of living things which consists of three main parts, namely the cell nucleus, cell membrane, and cytoplasm. Inside the cell there is protoplasm which consists of carbohydrates, proteins, fats, and nucleic acids. Groups of cells that have the same structure and function form a network. Examples of epithelial tissue, connective tissue, muscle tissue.
An organ is a collection of tissues that have one or more functions Examples of human organs are the heart, liver and lungs. Groups of organs that work together to form a continuous function are called organ systems such as the digestive system. Then the order of complexity of the body from simple to complex, namely cells, tissues, organs, organ systems
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Based on the data from the investigation which of the following is the best scientific question about organisms living in water that is polluted with organic solvents?
(A) Do organisms without pigments have a selective advantage in polluted environments?
(B) Will organisms living in polluted environments exhibit detrimental effects from an increased permeability of their cellular membranes?(C) Will organic solvents from the environment become incorporated into the cell membranes of organisms living in polluted environments?
(D) Should governments place more stringent restrictions on the release of organic solvents into aquatic ecosystems?
Option B) Will organisms living in polluted environments exhibit detrimental effects from an increased permeability of their cellular membranes, is the best scientific question about organisms living in water that is polluted with organic solvents.
A scientist proposed that water-soluble pollutants harm living organisms by increasing cellular membrane permeability. The permeability of a plasma membrane is affected by pH changes. This will cause the phospholipids to spread further apart, making the membrane more permeable. Thus, option B is the appropriate choice.
Organic pollution occurs when large amounts of organic compounds, which act as microorganism substrates, are released into watercourses. The dissolved oxygen in the receiving water may be used up faster than it can be replenished during the decomposition process, resulting in oxygen depletion and severe consequences for the stream biota. Domestic sewage (raw or treated), urban run-off, industrial (trade) effluents, and farm wastes all contribute to organic pollutants.
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Data were collected from longitudinal study designed investigate the relationship between blood and brain shrinkuge. The results of an analysis of the data for 22 observations are shown- sugar levels tne table below Termn Coef SE Coef Constant -15.668 154 Blood sugar 0.161 0.073 Which of the following represents 98 percent confidence interval for the , slope of the least-squares regression line for brain shrinkage on blood sugar levels? Assume the conditions for inference are mel: (A) -15.668 $ 2.52806.154) (B) -15.668 + 2,51866.154) (C) 0.161 + 2.528(0.073) (D) 0.161 + 2.518(0.073) (E) 0.161 + 2.197(0.073)
(D) 0.161 + 2.518(0.073) represents the 98 percent confidence interval for the slope of the least-squares regression line for brain shrinkage on blood sugar levels.
the structure inside the skull that regulates every bodily process in a person. The brain, which contains billions of nerve cells, is shielded by the skull (the bones that form the head). The brain stem, the cerebellum, and the cerebrum are its three main structural components. Grey matter and white matter are the two different tissue types that make up the brain. The majority of the brain's grey matter is made up of several cell types. Axons, which link the various grey matter regions of the brain together, make up the majority of white matter.
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pick two of the organ systems and describe how they would work together to accomplish some activity or function.
cardiovascular and digestive system, are the two-organ system, that can correlate together to function in the body.
organ system includes many organs which is made of variety of tissues.
cardiovascular system is for, is a system that circulates the blood in the body.
it consists of blood, blood vessels like the arteries, veins, capillaries, and heart.
digestive system is a system, wich includes organ that help in breaking down the food and then absorb the essential nutrient, keeping ou the waste.
it includes,mouth, teeth, esophagus, stomach, liver, pancreas, intestine, rectum, and anus.
The cardiovascular and digestive system works in a way where, digestive system takes out the nutrient from the food and circulatory system with blood circulates carbohydrates, amino acid etc to the whole body.
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The body's two organ systems that can work in tandem to operate are the cardiovascular and digestive systems. The organ system consists of several organs made up of a range of tissues.
The cardiovascular system is responsible for moving blood throughout the body. Blood, blood vessels such arteries, veins, and capillaries, and the heart are all part of it. The digestive system is a system of organs that aid in food breakdown and nutritional absorption while eliminating waste. It consists of the anus, rectum, liver, pancreas, oesophagus, stomach, mouth, teeth, and other internal organ systems. The cardiovascular system and digestive system function in a way where the former removes nutrients from food and the latter circulates blood to carry carbs, amino acids, etc. throughout the body.
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Widespread atelectasis, non-cardiogenic pulmonary edema, and diffuse, fluffy alveolar infiltrates on chest radiograph are characteristic of a. acute respiratory distress syndrome. b. chronic obstructive pulmonary disease. c. asthma. d. cor pulmonale.
Answer:
1mil
Explanastion:
1111
Subject: Biology
Vocabulary/Important People: On a separate sheet of paper define the vocabulary terms and identify the importance of the people below. *Try this without looking the terms up, it helps you study if you try it on your own first.
Dichotomous Key Phylogeny Evolution Charles Darwin Linneaus
Binomial Nomenclature Homologous Structure Analogous Structure Vestigial Structure
Fossil Record
Comparative Embryology Biogeography Molecular Biology Transitional Organism Anatomy
Common Ancestor
Concept Map: Create a concept map (Example below) to identify how the vocabulary terms and people are related within this unit. For each line describe how the items are related. This is an excellent way to study! The more connections and better descriptions you have the more you understand the concept.
Key Concept 1: Patterns of Evolution
Directions: Using your notes and the other activities we have completed, try to describe each of the learning objectives below.
EVO 1.1(a) Use scientific evidence to justify a claim of an evolutionary relationship between species.
EVO 1.1(b) Describe shared
characteristics (homologies) among organisms that provide evidence for common ancestry
EVO 1.2(a) Create or modify models to illustrate evolutionary relationships.
EVO 1.2(b) Use models of evolutionary relationships to describe and/or analyze how different species are related.
The explanation of the vocabulary terms include:
Dichotomous Key: A tool used in biology to identify organisms by their characteristics, which can be used to narrow down a list of possibilities through a series of choices.
Phylogeny: The evolutionary history of a group of organisms.
Evolution: The process by which populations of living organisms change over time through natural selection, genetic drift, and other mechanisms, leading to the emergence of new species.
Charles Darwin: A British naturalist who proposed the theory of evolution by natural selection and is considered one of the most important figures in the history of science.
Linnaeus: A Swedish botanist and zoologist, who laid the foundations for the modern system of naming organisms called binomial nomenclature.
Binomial Nomenclature: A system of naming organisms using two Latin names, the first representing the genus and the second representing the species.
Homologous Structures: Structures in different organisms that have a similar underlying structure and development, but may have different functions, suggesting they have a common ancestor.
Analogous Structures: Structures in different organisms that have similar functions but a different underlying structure and development, suggesting they have evolved independently.
Vestigial Structures: Structures in organisms that have little or no function in the organism, but have a function in an organism's ancestors
Fossil Record: The remains or traces of organisms from the past, which can provide evidence for the existence and evolution of extinct species.
Comparative Embryology: The study of the developmental stages of different organisms, which can provide evidence for common ancestry.
Biogeography: The study of the distribution of living organisms and fossils across different regions and through time, which can provide evidence for the evolution of species.
Molecular Biology: The study of the molecular basis of biological activity, which can provide evidence for evolutionary relationships between species through the comparison of DNA and protein sequences.
Transitional Organism: An organism that shows characteristics intermediate between two different groups, suggesting it is a link in the evolutionary chain between them.
Anatomy: The study of the structure and organization of living organisms, which can provide evidence for evolutionary relationships between species.
Common Ancestor: A hypothetical ancestor from which two or more species have evolved, inferred from the similarities and differences in their characteristics.
How to explain the vocabulary?To claim an evolutionary relationship between species, scientists use a combination of evidence from paleontology, comparative anatomy, molecular biology and biogeography. For example, the discovery of transitional fossils that show a gradual transition between the characteristics of two different groups of species, the similarities and differences in the DNA sequences of different species, the similarities in the embryological development of different organisms and the distribution of different species in different regions can provide evidence of evolutionary relationships between species.
Homologous structures are structures in different organisms that have a similar underlying structure and development, but may have different functions. These structures provide evidence for common ancestry because they suggest that the organisms with these structures share a recent common ancestor. Examples of homologous structures include the forelimbs of mammals, birds, and reptiles, which all have the same basic bone structure, despite being adapted for different purposes such as flight, grasping, or digging.
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Lectin from the seeds of Dolichos biflorus is a source of which of the following?
anti-A1
anti-A2
anti-B
-BB
Lectin from the seeds of Dolichos biflorus is a type of carbohydrate-binding protein that binds to specific sugars on the surface of cells. It is a source of anti-A1 and anti-A2 lectins.
Which are used to detect the presence of A1 and A2 blood types in humans. It is also a source of anti-B lectin, which is used to detect the presence of B blood type in humans.
Additionally, Dolichos biflorus lectin is a source of BB lectin, which is used to detect the presence of the BB blood type in humans. BB lectin is also used to detect the presence of certain bacteria and fungi. Dolichos biflorus lectin is a useful tool for medical diagnostics and research, as it can be used to detect the presence of different blood types and other microorganisms.
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which of the following functions is not associated with the cytoskeleton in eukaryotic cells? view available hint(s)for part a which of the following functions is not associated with the cytoskeleton in eukaryotic cells? the beating of cilia or flagella movement of rna molecules from the nucleus to the cytoplasm maintaining the position of the nucleus in the cell determining the shape of animal cells the contraction of muscle cells in animals
B) movement of rna molecules from the nucleus to the cytoplasm is the option that is not associated with the cytoskeleton in eukaryotic cells.
What is the responsible for RNA's exit from the nucleus?The nuclear pore complexes use a wide range of mobile export receptors to export RNA molecules out from nucleus into the cytoplasm.
What three major functions does the cytoskeleton perform?The cytoskeleton's core duties include regulating how cells are shaped, supplying mechanical support and integrity, enabling for cell movement, and facilitating the intracellular movement of supramolecular structures, vesicles, and even organelles.
Where is the cytoskeleton located in an animal cell?All cells, such as those of bacteria and archaea, have a complex, dynamic network of interlinked protein filaments called the cytoskeleton. It extends out from cell nucleus to the cell membrane in eukaryotes and is comprised of homologous proteins in different animals.
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which of the following functions is not associated with the cytoskeleton in eukaryotic cells? view available hint(s)for part a which of the following functions is not associated with the cytoskeleton in eukaryotic cells?
A) the beating of cilia or flagella
B) movement of rna molecules from the nucleus to the cytoplasm
C) maintaining the position of the nucleus in the cell
D)determining the shape of animal cells
E) the contraction of muscle cells in animals
you aim to chemically synthesize four peptides with the following one-letter amino acid sequences: tiger, panther, cheetah, and cat. a) which one of these peptides will have the lowest pi? give a reason for your answer. you are not expected to calculate the pis of the peptides to answer this question. a qualitative knowledge of the ionization properties of amino acids discussed in class is sufficient to answer this question.
The peptide that has the lowest pI is CHEETHA. This is because of the presence of two acidic amino acids in it.
The isoelectric point or pI of an amino acid is defined as the point at which the net charge of the amino acid is zero or neutral. In the given scenario, the peptide CHEETHA has the lowest pI or isoelectric point. This is because this peptide contains two acidic amino acids known as Glutamate (E) and one weakly basic amino acid known as Histidine (H). Other peptides like TIGER has only one acidic amino acid Glutamate (E) and one basic amino acid Arginine (R).
And peptide PANTHER has only one acidic amino acid Glutamate (E) and two basic amino acids like Arginine (R) and Histidine (H). So this has a high pI. And peptide CAT has neither basic nor acidic amino acid so its pI is neutral.
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iam needs a microscope with high enough magnification to observe the bacteria cells he has cultured from sauerkraut. which of these microscopes has just enough magnification to allow viewing of bacteria? please choose the correct answer from the following choices, and then select the submit answer button. answer choices a light microscope can be used to observe objects larger than 10 micrometers.
I am needs a microscope with high enough magnification to observe the bacteria cells he has cultured from sauerkraut. A light microscope can be used to observe objects larger than 10 micrometers microscopes has just enough magnification to allow viewing of bacteria.
A scanning electron microscope (SEM) can achieve resolution greater than 1 nanometer. We need 40x magnification to see mitosis for focusing the microscope with the objective should close enough view of the chromosomes to find each phase.
Fluorescence microscopy type of microscope is best for viewing the phases of mitosis in a cell because it is used for studying many of the key insights into our understanding of mitosis that have been enabled by the visualization process using fluorescence microscope
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Sex determination in mammals is due to the SRY region of the Y chromosome. An abnormality of this region could allow which of the following to have a male phenotype?A) Turner syndrome, 45, XB) translocation of SRY to an autosome of a 46, XX individualC) a person with an extra X chromosomeD) a person with one normal and one shortened (deleted) XE) Down syndrome, 46, XX
The correct option is B ; Translocation of SRY to an autosome of a 46, XX individual , The SRY gene codes for the protein known as the sex-determining region Y protein.
This protein is involved in the formation of male-typical sex, which normally follows a certain pattern based on an individual's chromosomes. Each cell in a person typically contains 46 chromosomes.
The gene SRY (sex determining region of the Y), situated near the distal end of the Y chromosome's short arm, is required for male sex determination in animals. SRY starts the chain of events that leads to the formation of a testis from an undifferentiated gonad.
In animals, the SRY gene (blue band) on the male Y chromosome governs sex determination. The presence of a Y chromosome determines sex in placental animals. Normally, female cells have two X chromosomes, whereas male cells have one.
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Sex determination in mammals is because of the SRY region located on the Y chromosome. An abnormality in this region could allow: (B) translocation of SRY to an autosome of a 46, XX individual.
SRY region on Y chromosome is the sex determining region or a gene to be specific. The gene is present on the distal region of the short arm of the chromosome. It possesses the potential to begin a cascade of steps that initiate the formation of testis.
Translocation is defined as the process of rearrangement pf chromosomes where a piece of chromosomes detaches and joins another chromosome. This process may or may not result in the loss of genes and as a result the normal functioning related to those chromosomes will be affected.
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