Answer:
to prevent the virus to have a big effect on the body of humans so the cells can fight against it
Answer:
well, I'm no college student but using common sense you need more than one so when one fails the other can come in and hopefully succeed.
Explanation:
Answer:
i don't really take notes sorry
Explanation:
I believe the answer is C.
the state of having the same or similar relation, relative position, or structure
