Answer:
some. nucleus.
Explanation:
hope this helps a little bit!!!!
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maddie
Answer: Calcitriol increases blood levels of calcium by increasing the absorption of calcium in the kidneys, increasing the absorption of calcium and phosphorus from the intestine, and increasing the release of calcium and phosphorus from the bones. Calcitriol helps the body to use calcium found in foods and supplements.
Explanation:
An alimentary canal is a digestive tract that is complete and has two openings which are the mouth and the anus. On the other hand a gastrovascular is a digestive tract that has only one opening. The advantage of the alimentary canal is the fact that intake of food can still go on even during digestion. This will enable a more complete digestion.
Answer:
Mutations on DNA that can lead to skin cancer and other skin problems
Explanation:
A Pyrimidine dimer is a molecular lesion that causes mutations that can lead to melanomas and skin sensitivity. It is caused by a photochemical reaction after the exposition of DNA to ultraviolet light.
These mutations happen on thymines or cytosines and can be repaired by a photolyase, an enzyme that adhere the dimers.
I hope you find this information useful and interesting! Good luck!
Answer: c. Death
Explanation:
Apostosis which means program cell death is this occurs when the cell is partially damaged or when the a mutant DNA can not be repaired by DNA repair mechanism, cells undergo a this process called apostosis which prevent the cell from passing the defect DNA to daughter cells.
Differentiation and growth needs reshaping of organs, this could be done only when old cells are removed from the area. Removal of superfluous, aged or partial damaged cells is done by apostosis.
