Answer:
sorry i have to do schoolwork
Explanation:
because school is important
I may be wrong, but I think it's Antibodies.
This is considered a heart attack. The blood flood that brings oxygen to the heart is cut off.
Answer:
because that one sperm cell have the 23 chromosomes to mix with the 23 in the egg.... to fertilize it
Explanation:
Probably. If things get worse, you should check a doctor