Answer:
Amino acids and DNA
Explanation:
It is used to make amino acids in our body which in turn make proteins: Skin, blood, hair, muscles. It is also needed to make nucleic acids, which form DNA and RNA
Answer:
This type of key is called a "dichotomous" key because the meaning of the word is "two branching". The structure of the key is such that each question is actually like a tree branch that has two smaller branches proceeding from it.
