3. Bones absorb vitamin (1 point)
ОА.
ОВ.
OC.
OD
Answer:
D
Explanation:
Vitamin D plays an important role in protecting your bones, both by helping your body absorb calcium and by supporting muscles needed to avoid falls. Children need vitamin D to build strong bones, and adults need it to keep their bones strong and healthy.
Recent biochemical evidence divides all organisms into three domains: Bacteria, Archaea, and Eukarya. Previously, Bacteria and Archaea were viewed as one group. Which statement best describes why Bacteria and Archaea have been placed into separate domains?.
Bacteria and Archaea have been placed separately because their cells have differential compositions. Bacteria and Archaea are prokaryotes.
Archaea and Bacteria domainsArchaea and Bacteria domains are prokaryotes because their cells do not contain membrane-bound organelles or cell nuclei.
However, there are certain phenotypic, structural, and evolutionary features to distinguish Archaea and Bacteria domains.
For example, the Archaea cell membrane contains isoprene hydrophobic groups and phospholipid linkages (it is not found in bacteria).
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What structure holds the two sister chromatids together as they prepare for cell division.
Two sister chromatids are held together by the centromere
The ChromosomeThe chromosome consists of 2 sister chromatids that are linked together by a structure known as the centromere.
Each of the sister chromatids carries an allele of the same gene.
The link between the two sister chromatids is broken at the anaphase stage of the cell division when spindle fibers pull them apart towards opposite poles within the cell.
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explain genetic drift using the bottleneck effect and founder effect
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Genetic drift can cause big losses of genetic variation for small populations.Population bottlenecks occur when a population’s size is reduced for at least one generation.Because genetic drift acts more quickly to reduce genetic variation in small populations, undergoing a bottleneck can reduce a population’s genetic variation by a lot, even if the bottleneck doesn’t last for very many generations. This is illustrated by the bags of marbles shown below, where, in generation 2, an unusually small draw creates a bottleneck.Hope Helps~N
At which point is the population experiencing carrying capacity?
1
in
Number of fruit flies -
Time
It is reaching carrying capacity at point c because that is where their population starts to plateau on the graph which tells me that their environment cannot hold more any more of them.
The carrying capacity of the fruit fly population is depicted by C. Option c is correct as it shows the carrying capacity. The carrying capacity is the range within which the maximum individual can fit in an ecosystem.
What is carrying capacity?
Carrying capacity means the ecosystem has the capacity to carry that specific number of individuals, and after this range, the population can't survive in that ecosystem. When the population exceeds the carrying capacity, competition for space and food begins, resulting in the death of some members of the species.
The A in the graph depicts the fruit fly population at its initial level. B depicts that the fruitflies are growing rapidly as there is an ample amount of resources. By the time they reach the C, the growth has slowed. After this range, the ecosystem can't provide resources for this population to grow in number.
Hence, The carrying capacity of the fruit fly population is depicted by C.
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Although male and female reproductive structures differ from one another in many ways, they carry out some of the same functions. Which of the following is a main function of both male and female reproductive systems?
a) uterus
b) ovary
c) vagina
d) fallopian tube
Answer:
b) ovary
Explanation:
both sëxes have gonads: In females the gonads are the ovaries, which make female gametes (eggs). The male gonads make male gametes.
If 2 organisms are in the same order, they must also be in the same...
Differentiate between acids and bases on the basis of their pH values. Give an example of each... essay question keep it simple plzzzz need answer ASAP
Answer:
Acids have a pH value of less than 7, the closer it is to one, the more acidic they are
e.g. HCL (hydrochloric acid) found in the stomach which has a pH of between 1.5 and 3.5
Alkaline solutions have pH values of over 7 (neither acids nor alkalis have a pH of 7 as it's neutral) and the closer it is to 14, the more alkaline they are
e.g. sodium hydroxide which has a pH of 14
Explanation:
The relationship between a food web and a food chain is most similar to the relationship between a road map and:
Answer:
I think a driving route/road because a food web is a diagram made up of multiple food chains. A food web could not exist without food chains. So, it's basically the same, a road map could not exist without roads or driving routes.
How do coordination structures help organize and measure.
Coordination structures help organize and measure through the following:
Addressing the requirements of the Response mission area Improving access to response resourcesFacilitating problem solving Fostering coordination prior to and following an incident.What are Coordination structures?These structures link two or more elements and are involved in problem solving and adequate responses to certain events.
They are also responsible in organizing and measuring ideas through the options mentioned above.
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Liz is interested in the relative sugar concentration of her favorite sodas. She mixes a standard amount of each soda with a standard amount of Benedict reagent, heats the samples in boiling water for five minutes, and observes the color reactions. Place the soda brands in order of increasing sugar concentration (lowest to highest).
a. Brand M (Yellow reaction color)
b. Brand D (Blue reaction color).
c. Brand X (Red reaction color).
d. Brand C (Green reaction color).
The ranking of the soda brands from highest to lowest sugar content is; Brand X> Brand M> Brand C > Brand D.
What is Benedict's solution?The Benedict's solution is a solution that can be used to test for the presence of absence of sugar in a sample. The color codes helps us to know the amount of sugar content in the sample.
From the information is the question, the ranking of the soda brands from highest to lowest sugar content is; Brand X> Brand M> Brand C > Brand D.
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What can fossils of teeth tell us about extinct animals?.
Answer:
To understand what extinct animals, such as dinosaurs, ate, we can compare their tooth types to the range of tooth types that we see with modern animals such as these carnivorous and omnivorous animals. ... These kinds of clues tell us that this animal was a meat eating animal. This fossil is the jaw of a Hadrosaur.
Explanation:
Teeth from more recent fossils reveal more because they have more isotopes preserved in them. For example, the nitrogen in the teeth of Neanderthals can reveal whether the protein they ate came from plants or animals.
An animal's teeth is literally shaped by its food. That's according to new research from the Department of Geology at the University of Leicester, published in the Royal Society journal Interface. Research shows that the roughness of tooth surfaces can reveal what an animal has been eating.
Functions of keratin in the skin include __________.
Answer:Keratin is an important protein in the epidermis. Keratin has two main functions: to adhere cells to each other and to form a protective layer on the outside of the skin. In epithelial cells, keratin proteins inside the cell attach to proteins called desmosomes on the surface.
Explanation:
What type of stimulation controls parathyroid release?.
Answer:
Humoral. The parathyroid is stimulated by the actual level of calcuim in the blood rather than by neural or hormonal stimulus.
Explanation:
Used as markers for identification purposes, ___________ are locations on the chromosome that contain short sequences that repeat themselves within the DNA molecule and in great abundance throughout the human genome
how does the skin gain the sensation of touch?Clarify
Answer:
Skin has many types of receptors that help you feel the things that you touch. In your body, a receptor is a structure that can get information from the environment. The information is then changed into a signal that can be understood by the nervous system.
Explanation:
Hope this helps! :)
Please help! Giving brainliest!!!
Answer:
C
Explanation:
Genetic drift is when the frequency of a gene variant in a population of species changes due to a change in the environment. Let's use a variety of colored marbles as an example. I have a jar of colored marbles: red, blue, green, and pink. My little brother accidentally shook the jar and lost all the red and blue marbles. Thus, I have only green and pink marbles left.
With genetic mutation, some organisms get damaged/die from the change in the environment, while some don't get too negatively affected.
Thus, the answer C is correct because a change in the environment affected the probability of getting a certain tongue length.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
on.
B. Explain how using 3D models of cells can help scientists gain a
better understanding of cell structures and function.
Answer:
it could help them by getting a better eye to eye representation of the cells and how they function
3D models provide a better and clear representation of the biological images and objects. It gives the exact visualization of the cell structures projecting in the body.
Why are 3D models important in biology?3D models can be created for studying the cell structures or organs in the body. Such models represent the image with respect to their length, width and height and hence can be ideal for the display of physiological and anatomical structures.
3D moles are ideally useful in monitoring the status of the cells and looking for visible signs of anomalies. It can also be proved as useful in studying the surgical interventions.
3D models can be ideal in assessing the status of tumour and cell proliferation. It can also project the response of a cell or cell structure with respect to stimulus. Such models can be used in academics to provide better understanding of the body of an organism.
Thus, 3D models can be considered important in research and analysis.
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Compare each patient's cdna sequence to the wild-type cdna sequence. Each patient has one nucleotide-pair substitution mutation. At which nucleotide location is the mutation found for each patient?.
The mutation is a change in the nucleotidic sequence. In the exposed example, Patient 1: nucleotide 143, TTC⇒TGC. Patient 2: nucleotide 143, TTC⇒TCC. Patient 3: nucleotide 147, TTC ⇒ TTG.
What is a mutation?
A mutation is a change or alteration in DNI sequences that introduce new variants.
Many of these are eliminated, but some of them might succeed and be incorporated into each individual.
These mutations are the ones that have been selected by natural selection.
Solving the problemWe know that each sequence initiates with nucleotide number 103 and ends in nucleotide 162.
So first, we will number the nucleotides, from 103 to 162. Each nucleotide has a number in increasing order.
Now, we will identify the mutations in each of the strands by comparing them with the wild-type sequence. The mutation occurs in one of the nucleotides, so we must look for the change in the bases.
Finally, we will identify the nucleotide location of each mutation.
nucleotide wild-type mutated
location nucleotide nucleotide
Patient 1 143 TTC TGC
Patient 2 143 TTC TCC
Patient 3 147 TTC TTG
In the attached files you will find an image for a better understanding.
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Sickle-cell anemia is a disease that is caused by __________ in the __________ of the protein.
Sickle-cell anemia is a disease that is caused by a mutation in the beta-globin chain of the protein, hemoglobin.
What is sickle cell anemia?Sickle cell anemia is a disease caused by a mutation in the beta-globin chain of the protein hemoglobin.
The mutation occurs on the beta-hemoglobin gene found on chromosome 11.
In sickle cell anemia, the red blood cells have as sickle shape and are unable to transport oxygen effectively in the body.
Therefore, sickle-cell anemia is a disease that is caused by a mutation in the beta-globin chain of the protein, hemoglobin.
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The major difference between bacterial and eukaryotic cytoplasmic membranes is the presence of ______, which are molecules that are typically found in eukaryotic cytoplasmic membranes but lacking in bacterial cytoplasmic membranes.
The major difference between bacterial and eukaryotic cytoplasmic membranes is the presence of nucleus.
Nucleus are molecules that are typically found in eukaryotic cytoplasmic membranes but lacking in bacterial cytoplasmic membranes.
What are prokaryotes?They are organisms that lack definite nucluesWhat are eukaryotes?They are organisms possessing true nuleusLearn more about organisms:
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The diagram below shows the two forces that keep Earth
in orbit around the Sun.
What is responsible for Earth's movement toward the Sun?
A. Suns forward motion
B. Earth's
forward motion
C. Force of gravity
D. Expansion of the universe
Answer: it’s C
Explanation: got it right on a test
Answer: it is C, he or she is right ^
Explanation:
Identify the following:
A: amino acid
B: simple sugar
C: nucleotide
D: fatty acid
Answer:
Nucleotide
Explanation:
A nucleotide is made from a pentose sugar (deoxyribose sugar), a nitrogenous base, and a phosphate group. Which fits the image shown.
please help me with my science homework! science is too hard for me
A protein that has many hydrophobic r-groups pointing to the outside of the protein would be found:.
Answer:
hello there
Explanation:
embedded within the membrane
I need help with this
Answer:
the fitness is increased
in your own words How wildlife is affected by the moon phases?
Answer:
The moon has three profound effects on the life of the earth: time, light and tide. Essential for many animals, especially birds, to navigate and navigate the moon; Others associate their reproduction with certain stages of the lunar cycle.
Explanation:
The anterior cingulate, which typically decreases as an individual meditates, is the brain area Multiple choice question. that supplies the frontal cortex with the neurotransmitter serotonin.
Answer:associated with conscious awareness and acts of will
Explanation:
This cell is dividing into two new cells.
Which two statements describe the two new cells?
A. Each new cell has a unique combination of genes.
B. Each new cell is genetically identical to the other.
O C. Each new cell carries genetic information that is the same as
what was in the original cell.
O D. Each new cell contains genetic information that is different from
what was in the original cell.
Answer:
B & D
Explanation:
Answer:
The answer is B & C
Explanation:
Just did the exam
my cells are in isotonic solution, and are in a constant internal environment. what is this called
Answer:
it is called Homeostasis
