Answer:
D
Explanation:
Answer:
d i just took the test
Explanation:
What happens to the genetic material before the cell divides
Because each chromosome is made from a single molecule of 'DNA', before a cell divides itself, it had to replicate and copy its DNA. This makes it so that after cell division, each new cell holds an exact copy of the genetic material from the original cell.
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If the birth rate and death rate are balanced in a population, how might a population increase in size?
a. By doubling
b. By emigration
c. By immigration
d. By an increase in density
which molecules bind regulatory sequences of dna to encourage positive regulation of transcription?
What is observational classification
Answer:
Three types of observational studies include cohort studies, case-control studies, and cross-sectional studies
explain why you have so many responses to one stimulus
Answer:
When a stimulus is detected by a sensory receptor, it can elicit a reflex via stimulus transduction.
What are some functions of the foot in rotifers? (Choose all that apply)
to propel itself through its environment
to aid in defense against predators
to assist in the digestion of food
to attach itself to a variety of structures
Answer:
to propel itself through its environment and to attach itself to a variety of structures
Explanation:
I took the quiz(-.-)
Rotifers foot is transformed into a variety of structure for moving and swimming and attach itself to a different structure, hence option d is correct.
What are rotifers?Some rotifers are really planktonic and free-swimming, while others travel around a substrate via inchworming, and some are sessile and reside inside tubes or gelatinous holdfasts.
About 25 species are sessile or planktonic, colonial (such as Sinantherina semibullata), and some rotifer species have evolved four moveable toes that are equipped with pedal glands to facilitate swimming and crawling.
Rotifers swiftly colonize new environments and transform primary production (algae and cyanobacteria) into a form that is secondary consumers.
Therefore foot of the rotifers is changed into a different structure for movement is attach itself to a variety of structures, hence option d is correct.
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What is the condition in a male in which the prostate gland enlarges and compresses the urethra, causing bladder, kidney, and urinary problems?
Answer:
b. Prostatic hyperplasia
Explanation:is correct
Which of the following are water problems? Select the three correct answers.
droughts
condensation
pollution
conversation
runoff
floods
Answer:
floods are the water problem
fast helpppppp
Which characteristic of living organisms is responsible for the production of oxygen in the leaf of a plant exposed to sunlight?
A. excretion
B. movement
C. nutrition
D. respiration
Answer:
Nutrition
Explanation:
Find density if mass equal 400lb volume 20
Answer:
just use the formula d=m/v and plug in the numbers to solve the equation
Explanation:
which division of the ans is associated with the fight-or-flight response?
pls help
When new bonds form, energy is __________.
released
disconnected
gone
stored
Answer:
When new bonds form, energy is 'released'
How to treat Scalp acne?
Answer:
1. Treat acne on the head with benzoyl peroxide
2. Use salicylic acid to clear pores
3. Use AHA to treat acne on the head
4. Cleanse the scalp with sulfur
5. Use a retinoid to apply to acne spots
Explanation:
What are 2 non-example of potential energy ?
Answer:
Anything that is currently moving or giving off energy such as heat, light, or magnetism would be kinetic energy instead.
Explanation:
Things like objects on top of hills, unused batteries, chemicals that haven't been mixed, would all be examples of potential energy. Even steam is an example of potential energy since it has changed to a higher energy state. But as soon as steam does something, causes an injury (scalding), or starts to turn back into water, then it is kinetic energy.
Of course, to blur the lines a bit, something can have both forms of energy at the same time. If you push a cart down a hill, the movement is the kinetic energy, but until it reaches the bottom, then it also has potential energy in the form of gravity.
Kinetic energy and thermal energy are two non-examples of potential energy as they are forms of energy related to motion and particle movement, respectively, rather than stored energy.
Kinetic energy is not an example of potential energy as it is the energy of an object in motion, while thermal energy is also related to the random motion and vibrations of particles rather than stored energy based on position or configuration.
Kinetic Energy: Kinetic energy is the energy possessed by an object due to its motion
Unlike potential energy, which is associated with stored energy, kinetic energy relates to the motion and velocity of an object.For example, a moving car or a ball thrown in the air have kinetic energy.Thermal Energy: Thermal energy is the energy associated with the random motion of particles within a substance.
It is not a form of potential energy because it does not involve the stored energy of an object due to its position or condition. Instead, thermal energy is related to the average kinetic energy of particles within a system, determining its temperature.Thus, kinetic and potential energy are examples of non-potential energy.
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After you finish a big meal, the level of glucose in your bloodstream increases. What happens next in order for your body to process the glucose
Answer:
Digestion
Explanation:
The body digest the food down through the mouth to the anus
some enzymes also act on the food for easy digestion
Patient describes a burning sensation on the posterior side of her body, lateral to the spine on the left side of the body inferior to the shoulder blade, inferior to the waist and superior to the knee. Where is this located on the image above?
A
B
C
D
E
F
G
H
I
J
Answer:
Explanation:
Injuries to the upper brachial plexus (C5, C6) affect muscles of the shoulder and elbow.
which molecule is needed for photosynthesis to occur?
Answer:
Carbon dioxide and water
Explanation:
plants prepare their food in presence of these molecules to produce sugar and oxygen which we required for survive
Fucus shows ______life cycle pattern
a)Haplontic
b)Haplo-diplontic
c)Diplontic
d)Diplo-haplontic
Fucus shows the diplontic life-cylic.
Both the male and female fuse in the ostiole of the bump.
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what is the role of vegetation in slope stability?
2. What is a gene? ________________________________________________________
3. What is the difference between gametes and body cells? ____________________________________________________________________________
4. Each person’s DNA is unique except for who?________________________________________________________________________
5. How does each gene code for a protein?__________________________________________________________________________________________________________________________________________________
6. Look at the picture of the nucleus, chromosome, and gene and infer what the relationship is of the three things? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Please answer all questions
Answer:
1. generation or birth or gender) is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.
2: 1. Body cells make up the body of any multicellular organism. On the other hand, a gamete is a sex cell that can either be a sperm or egg cell.
2. Body cells undergo the process of mitosis while gametes undergo a process called meiosis.
3. A body cell contains a complete number of chromosomes and is called a diploid cell while a gamete contains only half the number of chromosomes of its parent cell, and it is called a haploid cell.
3. Identical twins
4. nucleotide triplets
5. A gene is a sequence of nucleotide bases that specifies certain products; RNA or proteins. It is the segment of DNA that holds the information to build and maintain an organism's cell and also pass genetic traits to offspring. Hence, it is the molecular unit of heredity in living organisms.
The DNA is a long double-helical structure that stores the genetic information in our cells. It consists of two long polynucleotide chains composed of the four nucleotides subunits (A, C, G, T).
In order for the long strand of DNA to fit into the cell's nucleus, it is coiled around certain proteins called HISTONES to form Chromatin, which undergoes further coiling and organization to to linear CHROMOSOMES.
The chromosomes are structured within the nucleus, that are made up of the cell's genetic material (DNA). In eukaryotic cells, the nucleus houses the cell's DNA and directs protein synthesis (expression of the information encoded by genes).
Explanation:
The place where a group of organisms lives is called the ___________. The combination of the community and habitat is called the ___________.
Answer:
the first blank is biodiversity. I think like that
The place where a group of organisms lives is called the habitat. The combination of the community and habitat is called the ecosystem.
What is habitat and ecosystem?An ecosystem is basically the neighborhood where animal lives. The habitat is the animal's address in that neighborhood. Some animals can survive in more than one habitat. Other animals are limited to certain habitats. For example, moose habitat is more specific than gray squirrel habit.
Moreover, ecosystem is defined as the interrelationships between the biotic and abiotic component of the environment. Whereas habitat is defined as the natural environment in which a particular species of plants and animals lives.
Therefore, a habitat is a place where an organism makes its home. A habitat meets all the environmental conditions an organism needs to survive. For an animal, that means everything it needs to find and gather food, select a mate, and successfully reproduce.
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When Emma first began dancing, her movements were ______ and awkward. Now, after several months of practice, Emma is able to produce fluid, smooth movements as a result of which of the following?
*all of the above is correct
Answer:
All of the above is the correct answer
Explanation:
What percentage of body weight must be lost due to dehydration before delirium, exhaustion, and collapse occur
Answer:
7-10 percent of body weight must be lost due to dehydration before delirium, exhaustion, and collapse occur.
Explanation:
Hope this helps!
in the process of genetic profiling/dna fingerprinting, what is compared between two people/samples?
Answer:
"DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA profiles are a match, then the evidence came from that suspect." information from a website so reword it a bit and you should be ok.
In the process of genetic profiling/ data fingerprinting, genetic profiling is a process that can be compared between two people/samples.
What is genetic profiling?DNA profiling compares only the most variable sections of DNA, which has an advantage over whole genome sequencing when seeking to identify genetic changes between two individuals.
In the field of biology known as comparative genomics, genome sequences from various species—including humans, mice, and a broad variety of other organisms—from bacteria to chimpanzees are compared.
"DNA fingerprinting is a lab method used to connect biological evidence to a defendant in a criminal investigation. A DNA sample from a suspect is compared to one acquired from a crime scene. The evidence originated from that suspect if the two DNA profiles match.
Therefore, genetic profiling is compared between two people/samples.
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What must happen to a chromosome for it to become chromatin?
Answer:
Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5). ... However, when eukaryotic cells are not dividing — a stage called interphase — the chromatin within their chromosomes is less tightly packed.
Explanation:
the blood pressure in the large systemic arteries is greatest during:
Answer:
when blood is pumped out of the heart into the arteries.
Explanation:
Hope its help you!!
HELP ASAP PLS! just need 1 question:( i don’t understand what it’s asking !:(
Answer:
As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well. As the number of predators increases, more prey are captured.
Explanation:
Circle the letter of the phrase that best completes the sentence.
The cell theory was
a. first identified in 1665
b. the end result of many scientific investigations.
c. described by Rudolf Virchow.
d. Both (a) and (b)
Answer: D
Explanation: the cell theory took many years to fully learn about and publish and many different scientists, biologists etc had to investigate in order to finalise the hypothesis. Also, it was first identified in 1665 by Robert hooke.
Which of the following structures of the respiratory system helps to prevent choking?
Answer:
b. is correct Epiglottis
Explanation: post protected
Scientists often use fruit flies as a method to test hypotheses about human genes. Why are fruit flies advantageous in the study of human inheritance?
They can self-pollinate.
They lack nucleic acids.
They are very different from humans.
They reproduce quickly and take up little space.
Fruitflies are advantageous in the study of human genes and inheritance because they reproduce quickly and take up little space.
Advantages of using Fruitflies in the study of human geneticsFruitflies are usually a subject for the study of human genes and inheritance for some reasons:
They have a simple genetic structureThey reproduce quicklyThey are quite small and hence take up very little spaceThe quick rate of reproduction makes fruitflies good subjects for studying mutation as well.
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They reproduce quickly and take up little space.
What is inheritance?Fruit flies (Drosophila melanogaster) are advantageous in the study of human inheritance because they have several characteristics that make them well-suited for genetic research. One key advantage is their rapid reproductive cycle, with a generation time of about two weeks. This allows researchers to observe multiple generations in a short period, accelerating the study of inheritance patterns and genetic traits.
Additionally, fruit flies have a relatively small size, making it feasible to maintain large populations in a laboratory setting without requiring excessive space or resources. This allows for efficient experimental design and the ability to conduct large-scale genetic studies.
While fruit flies share some genetic similarities with humans, they are not identical to humans. However, their genetic and developmental processes have enough similarities to provide valuable insights into fundamental principles of inheritance and gene function, which can inform our understanding of human genetics.
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