Keratin<span> is an important protein in the epidermis. </span>Keratin<span> 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, </span>keratin<span> proteins inside the cell attach to proteins called desmosomes on the surface.</span>
It allows for genetic variation in the offspring generations. If this genetic variation did not occur, a single disease or natural disaster could wipe out the entire species as all the organisms would be genetically identical.
Answer:
there are two ATP molecules
Your Answer would be Classification
Since this is trying to Classifie the frog by its description