Answer:
A. keeps you healthy
Explanation:
The immune system protects your body from outside "invaders," such as bacteria, viruses, fungi, and toxins.
hope it helps you
a. not be able to meet long term timber needs.
The answer is D but I know I helped you
Answer:
d
Explanation:
bacteria is a small rna and there are millions of them they are not big enough to have dna
