They are the light reactions and calvin cycle. The products from light reactions are ATP and NADPH
<span>Reticular formation is the
area of the brain associated with attention and concentration that is
completely myelinated by the time a child is five years of age. This is related
with the growing attention span of the children as they are preparing to go to
school,</span>
Answer: No
Explanation: It is beneficial if the animals that are disadvantageous doesn't reproduce so it doesn't discredit natural selection. The traits in which variation is occured are more suitable for organism to live and reproduce in the environment are preserved and are passed from generation to generation.
However, natural selection effects limited number of progeny.
Think about skin cells. Skin cells shed every day, if cell division didn't take place, you would just constantly be losing skin cells.