Answer:
A. heterotrophic,chitin in cell walls
Explanation:
An amino acid is an organic molecule that is made up of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid.
Answer:
because it comes from the everyday activities of many different people, such as fertilizing a lawn, using a pesticide, or constructing a road or building.
Explanation:
Answer:
wolf families are wolf packs l. they are usually led made up of a male parent and a female parents along with their pups