Answer: i think it's because it is cold, they are sick, or they are dead if they are not moving
Explanation:
It is important that it has half because there is a half that comes from each parent. so to equal it all out human gametes have a half set of dna instead of a full set
A- valve replacement
b- stents
x- heart transplant
C. proteins-
The cytoskeleton is what provides structural support for a cell, and the cytoskeleton is made out of fibrous proteins.
Hope that helped!
