Asexual reproduction because cells divide through the process of meiosis which sexual reproduction.
The respiratory system works with the digestive and circulatory systems to make cellular respiration possible. During cellular respiration, your cells use oxygen and glucose to release energy. Carbon dioxide is a waste product of the process. Carbon dioxide must be removed from cells.
Info from: Google lolz.
Greetings!
Option A would be correct. The most likely outcome, (if) ribosomes stopped functioning properly, would be Cell growth stopping, or slowing down.
~Lauv