Answer:
a
Explanation:
Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development in children, teens, and pregnant women.
Answer:sponge
Explanation:a sponge doesn’t have a backbone
The answer is The colors are added by the programmer to identify different elements in the molecule.
C I would believe is correct