Answer:
Enzymes lower the activation energy of a reaction - that is the required amount of energy needed for a reaction to occur. They do this by binding to a substrate and holding it in a way that allows the reaction to happen more efficiently.
Explanation:
the upstairs in a house is usually warmer than downstairs.this is due to what type of heat transfer
Heat transfer is the term used to describe the movement of heat (thermal energy) caused by temperature differences and the subsequent distribution and variations in temperature.
The generation, utilization, conversion, and exchange of thermal energy (heat) across physical systems is the subject of the thermal engineering field known as heat transfer.
Different heat transmission techniques, including thermal conduction, thermal convection, thermal radiation, and energy transfer by phase changes, are categorized.
To achieve heat transmission, engineers also take into account the advection of material containing various chemical species, whether hot or cold.
Thus, Heat transfer is the term used to describe the movement of heat (thermal energy) caused by temperature differences and the subsequent distribution and variations in temperature.
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What is the function of the coronary arteries?
to deliver carbon dioxide to the heart muscle
to delivery oxygen-poor blood to the heart muscle
to delivery oxygen-rich blood to the heart muscle
to deliver free radicals to the heart muscle
DNA is a nucleic acid with a 3D double helix structure. Proteins have a primary, secondary, and tertiary structure. If DNA were a protein, what would comprise its primary, secondary, and tertiary structures?
If DNA were a protein then:
Primary: The sequence of nucleotides that make up the DNA molecule would be the protein's basic structure if DNA were a Protein. Secondary: The double helix structure created by the hydrogen bonding between the nitrogenous bases would represent the secondary structure of DNA if it were a protein. Tertiary: As DNA is not a protein, the tertiary structure of DNA as a protein is not well understood, but it may be thought of as the general form of the double helix and its interactions with other molecules.It's crucial to remember that both DNA and proteins are essentially different entities with unique structures and functions, therefore they cannot be directly compared in this manner.
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Please help me I’m stuck
1. Complete this Punnett square.
In the completed Punnett square, what percentage of the offspring are homozygous recessive?
Type your answer here:
2. Describe how genetic engineering improved lives of individuals sit insulin dependent diabetes.
biosafety cabinet III
Class I and Class II cabinets cannot provide the same level of absolute protection as a Class III biological safety cabinet.
Work is done through glove ports on the front of all Class III cabinets, which are typically made of welded metal construction, are supposed to be gas tight, and they are all built of metal construction.
A fully enclosed, ventilated cabinet with leak-tight construction and connected rubber gloves for performing tasks in the cabinet is referred to as a Class III cabinet.
A Class III biological safety cabinet cannot offer the same level of total protection as Class I or Class II cabinets.
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The given question is incomplete, so the most probable complete question is,
What is biosafety cabinet III?
HELP PLEASE!! TWO DIRECTIONS AND TWO APPROXIMATE DISTANCES
rom the data presented, it is likely that Marko gave Hinano precise instructions. One could hypothesize he said: beginning from the entrance gate, go straight forward for around 200 yards, then turn left at the immense Ferris wheel; proceed ahead in a linear pattern for about 100 yards, finally take a right towards the food court; continuing going forth for almost fifty yards and search for him near the opening of the roller coaster ride.
How to explain the informationWith this navigational guide, directing Hinano to his exact whereabouts, utilizing three specific landmarks (entrance door, tilt-wheel, & cafeteria) while specifying two directional turns (left/right) as well as two approximate distances (200 yds or 100 yds).
Her route would be optimized, allowing her rapid arrival to Marko's position with minimal time and effort.
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Which phrase best defines a scientific question?
A. A question that is answered using observation and evidence
B. A question that is answered with opinions or surveys
C. A question that is answered using inferences and opinions
D. A question that is answered through ethical debate
A scientific question is best defined as a question that is answered using observation and evidence, relying on empirical data and the scientific method to reach conclusions. So, option A is the right choice.
Scientific questions: Scientific questions are inquiries that seek to explore and understand the natural world through a systematic and evidence-based approach.Observation and evidence: Scientific questions are answered using observation, which involves gathering information through direct or indirect means. Evidence refers to the factual data collected through observations or experiments.Empirical approach: Scientific questions require an empirical approach, meaning they rely on evidence-based methods and observations rather than opinions or personal beliefs.Scientific method: To answer scientific questions, researchers employ the scientific method, which involves formulating hypotheses, conducting experiments or observations, analyzing data, and drawing conclusions based on the evidence gathered.Objectivity: Scientific questions aim for objectivity by minimizing personal biases or opinions. They prioritize empirical evidence over subjective interpretations.Therefore, option A, "A question that is answered using observation and evidence," best defines a scientific question as it captures the essence of the systematic, evidence-based approach inherent in scientific inquiry.
The right answer is option A .A question that is answered using observation and evidences
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The process where a normal cells undergoes genetic changes to become a cancerous
cell is called:
a. transformation
b. mitosis
c. meiosis
d. DNA replication
Answer: I think it might be DNA replication or mitosis
Explanation:In many cancer cells the number of chromosomes is altered so that there are either too many or too few chromosomes in the cells. These cells are said to be aneuploid. Errors may occur during the DNA replication resulting in mutations and possibly the development of cancer but then again Cancer is essentially a disease of mitosis - the normal 'checkpoints' regulating mitosis are ignored or overridden by the cancer cell. Cancer begins when a single cell is transformed, or converted from a normal cell to a cancer cell.
A controlled experiment
is repeated many times to ensure that the results are accurate
includes one group for which the scientist controls all variables
includes at least two groups, one of which does not receive the experimental treatment
includes at least two groups, one differing from the other by two or more variables
A controlled experiment is a scientific test that compares two or more groups that are kept the same except for one factor that is changed or altered. This factor is the independent variable, and its effects on the system being studied are measured. A controlled experiment uses controls, usually separating the subjects into an experimental group and a control group. The experimental group is exposed to the independent variable, while the control group is not. A controlled experiment allows researchers to determine cause and effect between variables.
According to this definition, the answer to your question is: A controlled experiment includes at least two groups, one of which does not receive the experimental treatment. This option matches the description of a control group and an experimental group in a controlled experiment.
20PTS Build a cladogram showing the relationship between conifers, cycads, and ginkgoes based on this information in the table. What questions would you ask to determine where gnetophytes best fit in the class? why is it important to have many different types of evidence such as anatomy DNA evidence and fossil evidence to help scientist determine evolutionarily relationships? 
Cladogram is the diagrammatical representation of the relationship between the groups and taxa. The branches are called clades. This helps in the analysis and identification of the ancestors which helps in the construction of the cladogram. The cladograms are also known as phylogenetic trees.
The major difference between cladograms and phylogenetic trees is the cladogram is based on the characteristics of the ancestors whereas the phylogenetic trees is based on the genetic ancestral evolution. Polyphyletic, monophyletic, and paraphyletic are types.
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Farming techniques such as slash and burn, could result in ___ if the land is not left to fallow long enough.
Word choices are:
Deforestation
Creep
Mudflows
Top soil
Salinization
Soil depletion
Farming techniques such as slash and burn could result in soil depletion if the land is not left to fallow long enough. Slash and burn agriculture involves cutting down and burning vegetation to clear land for farming. If the land is not left to fallow for a sufficient amount of time, the soil can become depleted of nutrients, making it less fertile and less productive for farming.
MARK ME BRAINLEISTQuestion 5 of 10
Which phrase is the best definition of matter?
OA. Anything that has mass and occupies space
OB. A substance that has a fixed volume
O C. The amount of material in a given volume of space
O D. Anything that can move from place to place
SUBMIT
Answer:
Anything that has space and occupies space
The answer is A - Anything that has mass and occupies space.
Which type of mutation is illustrated below: *
Original: TAC-GAG-CGA-ATG
Mutation: TAC-GAG-GAA-TGG
A)Insertion
B)Deletion
C)Substitution
Also for the rest of the answers pls
Which of the following actions would help to reduce the risk of infection transmission when transferring patients between hospitals? (Select 4, correct responses): a. Remove and dispose of contaminated PPE before entering the new hospital
b. Ensure all frequently touched surfaces are cleaned before and after the transport c. Do not allow the patient to use the toilet during transport
d. Cover any symptomatic rashes or skin breaches,
e. Change any dressings of skin breaches on the patient before entering * the new hospital
f. Perform hand hygiene before and after the patient is moved
Which ocean current warms the climate of northwestern Europe?
Answer:
The Atlantic overturning is one of Earth's most important heat transport systems, pumping warm water northwards and cold water southwards.
Explanation:
hope it helps
what does dimensions mean
Answer:
you want to know what the dimensions are?
the dimensions are the height (up and down) and the base length (dotted line)
In several fresh water lakes, grouos of sticklebacks were physically cut-off from the ocean population. This prevented the groups from interbreeding, and the freshwater populations gradually changed over time. How were they isolated? What were subpopulation changes
The isolation of stickleback populations from the ocean likely occurred through a process called allopatric speciation, which can happen when a physical barrier, such as a mountain range or a body of water, separates a population into two or more groups that can no longer interbreed.
As the subpopulations of sticklebacks continued to evolve separately, they likely became more genetically distinct from each other and from the ocean population. This could eventually lead to the formation of new species if the differences between the groups became significant enough that they could no longer interbreed, even if they were reintroduced.
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Much of energy conservation involves
industry changes in energy production.
investing in city policies to use renewable energy.
changing behavior.
costly home renovations.
Answer:
it's calculated from the month of may
Which of these is an example of variation?
Identical twins having identical DNA.
Two potato plants that are clones of each other.
Two Guinea pigs having different coloured fur.
Two human beings having similar body parts.
Answer:
Two Guinea pigs having different coloured fur
Explanation:
the variation is that there are differences between the colours, so that is the variation
Answer:
Two Guinea pigs having different coloured fur is an example of variation.
Variation refers to differences or diversity within a population. Identical twins having identical DNA and two potato plants that are clones of each other have no variation because they are genetically identical. Two human beings having similar body parts is too vague to be considered an example of variation.
5. The diagram below shows the female reproductive system. Which one of the following statements is correct? (1) A fertilised egg is released from Y. (2) The egg travels from X to Z. (3) During fertilisation, the sperm fuses with the egg in Z. (4) The fertilised egg will divide to form more cells and attach to the wall in Y
Answer:
4
Explanation:
fertilised egg is released at 'x'
egg travels from x to y
fuses at Y
In a forest, some birds eat large berries, while other birds eat tiny seeds. These 2 birds survive because they eat different things. Which of these adapted to help the birds eat different things?
Eyes
Beak
Wings
Feathers
Answer:
Beak
Explanation:
The beak is adapted to allow it to survive in its own habitat
How can two species that that Look very different Form each Other be More closely relatet that other two
Answer:
not all animals from the same group have the same feature, they could differ in various ways
Explanation:
write down the steps of double fertilization
Steps of Double Fertilization.
It was discovered by S.G. Nawaschin (1897) Lilium are Fertillaria sps.1. Germination of pollen on stigma :
(i) By absorbing secretion of stigma pollen swells up and outer layer exine ruptures whereas inner lintine comes out in the form of pollen tube.
(ii) Branched polen tube is formed in amentiferae group.
(iii) In families malvaceae, cucurbitaceae, etc. polysiphonous condition (many pollen tubes from a single pollen) is found.
2. Path taken up by pollen tube :
(i) Pollen tube pierces through stigmatic papilla into the tissue of style.
(ii) Filiform apparatus of synergids secrete some chemotropically active substances, which promotes porogamy.
(iii) Obturator (special structure) act as a bridge for growth of pollen tube.
(iv) Cations are naturally occurring chemotropic agents in the pistil.
3. Entry of pollen tube into embryo sac :
(i) It enters into the ovule by either of the two methods; porogamy, chalazogamy or mesogamy.
(ii) Irrespective of the mode of entry of pollen tube into the ovule, the pollen tube always enters into embryo sac at micropylar end (Porogany).
(iii) If enters through chalaza (base) it is termed chalazogany.
(iv) If pierces through integuments, it is called mesogamy.
(v) Tip of pollen tube penetrates embryo sac and reaches egg apparatus.
4. Syngamy (Generative fertilization)
(i) Pollen tube burst as tube nucleus disorganises.
(ii) One of male gametes fuses with egg cell or oosphere.
(iii) Deploid oospore or zygote is formed.
5. Triple fusion (Vegetative fertilization) :
The other gamete fuses with secondary nucleus forming triploid primary endosperm (PEN) which later give rise to endosperm.
Answer:
Double fertilization is a process unique to flowering plants (angiosperms) in which two sperm cells fertilize two different structures within the female reproductive system. The steps of double fertilization are:
Pollination: transfer of pollen grains from the male to the female flowerGermination: the pollen grain forms a pollen tube and grows down the style towards the ovuleSyngamy: the first sperm cell fuses with the egg cell to form a diploid zygote (2n)Endosperm formation: the second sperm cell fuses with two polar nuclei to form a triploid cell (3n) which undergoes cell division to form the endospermEmbryo formation: the zygote undergoes several rounds of cell division and differentiation to form the embryoDouble fertilization leads to the formation of both the embryo and endosperm within the ovule, which ultimately results in the development of a seed.
In many US cities and suburban areas, street gangs account for approximately 50 to 90 percent of the violent crimes committed.
O A.
OB.
True
False
Answer:
False
This statement is not entirely true. While street gangs can be responsible for a significant portion of violent crimes in some US cities and suburban areas, the percentage varies greatly depending on the location. According to the National Gang Center, some cities report that street gangs account for as little as 5% of violent crimes, while others report up to 90%. Therefore, it is not accurate to make a blanket statement that street gangs account for approximately 50 to 90 percent of violent crimes in all US cities and suburban areas.
An example of environmental racism is placing which of the following in poor areas more frequently than more wealthy areas?
Land fils
Factories
Hazardous
All of the above
Answer:
An example of environmental racism is placing all of the following in poor areas more frequently than more wealthy areas, including landfills, factories, and hazardous waste facilities.
Explanation:
mark brainliest
what is fertilization ??
Fertilization is the process in sexual reproduction where a sperm cell (male gamete) fuses with an egg cell (female gamete) to form a single cell called a zygote. This process occurs in both animals and plants, allowing for the genetic material from both parents to combine and create a new, genetically unique individual. The zygote then undergoes multiple rounds of cell division and differentiation, eventually developing into a fully-formed organism. Fertilization is a crucial step in the life cycle of sexually reproducing species, as it ensures the continuation of their genetic lineage and promotes genetic diversity within a population.
Answer:
The fusion of a haploid male gamete (spermatozoa) and a haploid female gamete (ovum) to form a diploid cell, the zygote, is called fertilization.
Explanation:
how does the nose work in depth explanation I'll give brainliest pls
Answer:
It allows air to enter your body, then filters debris and warms and moistens the air. Your nose gives you a sense of smell and helps shape your appearance. Many common symptoms affect your nose, such as a stuffy nose and nosebleed. Other symptoms may need treatment to keep your nose functioning well.
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Pls brainliest...
Which of the following is the most accurate definition of behavior?
A. Behavior is an action that can be observed with lab equipment.
B. Behavior is an action that is only measurable with medical equipment.
C. Behavior is an action that can be observed and measured.
D. Behavior is an action that is private but observable and measurable.
Answer:
behavior is an action that can be observed and measured
Answer:
Explanation:
D
Which is an example of a fallacy of inevitability argument?
OA.
Global warming is a serious crisis that needs immediate attention.
OB.
It takes a lot of coordinated effort to adequately address social problems.
Free breakfast programs have been found to increase academic performance.
O D. Those in poverty have poor judgment, so aid programs do not help.
O C.
The example of a fallacy of inevitability argument is those in poverty have poor judgment, so aid programs do not help. The correct option D
What is fallacy of inevitability argument ?Fallacy of inevitability argument occurs when people argue that a certain situation is inevitable.
This argument also ignores the fact that poverty can be brought on by a variety of issues including
Discrimination Lack of access to education Lack of employment prospectsTherefore, The example of a fallacy of inevitability argument is those in poverty have poor judgment, so aid programs do not help.
The correct option D
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Compare the number of chromosomes between eukaryotes and prokaryotes
Eukaryotes and prokaryotes differ significantly in their chromosome organization and number.
Eukaryotes, which include plants, animals, fungi, and protists, have complex cells with a true nucleus that houses their DNA. Eukaryotic chromosomes are linear and are found in pairs, with diploid cells typically having two sets of chromosomes. The number of chromosomes in eukaryotes can vary widely, with humans having 46 chromosomes, while some ferns may have hundreds of chromosomes.
In contrast, prokaryotes, such as bacteria and archaea, have simpler cells lacking a true nucleus. Prokaryotic chromosomes are usually circular and consist of a single, continuous DNA molecule. Most prokaryotes have only one chromosome, although some species have multiple copies of their chromosome. The number of genes on a prokaryotic chromosome is typically much smaller than in eukaryotes.
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