The joining of an egg and a sperm
Answer:
vaccines are made for protecting from disease or colds like the flu and rona
Explanation:
C. Muscle sprain
I think would be the answer
One of the distinguishing characteristics between hiv and aids is the :
c. development of opportunistic infections.
Those are really wacky answers to choose from. It isn't B.They are usually man made. It's not C. we still need to be careful. It is not D. It is always your responsibility for whatever you do. It shouldn't be A, but that would kind of make sense. I would choose A.
