Having more then one independent variable will give unreliable results. Hope this helps
Answer:
The answer that you want to pick is
A-Oogenesis occurs in females, but spermatogenesis occurs in males.
Explanation:
Think about how babies are made you need a male and a female.
GG bb
gg GGgg bbgg
Bb GGBb bbBb
does this make sense ? I tried to set up the square best I can
The answer is: A
Chemical energy