Answer:
the answer is A
Explanation:
the cell membrane is like a shield to the cell.
caudal fin lr sometimes is called tail fin
The answer is immune system
Answer:
The body needs protein to build and repair tissues to make hormones, enzymes, body chemicals e.t.c.
The body also uses protein as a building block of blood , bones, skin , muscles, cartilage e.t.c.
Explanation:
