Explanation:
Genes are located on chromosomes, which are large pieces of DNA contained in a eukaryotic cell's nucleus.
Out of the following given choices;
<span>A. </span>cause their nest-guarding activity to drop
<span>B. </span>change male characteristics to female characteristics
<span>C. </span>disrupt the estrogen receptors
<span>D. </span>cause the males to become even more aggressive
The answer is A. The males would begin to search for the females for mating and hence reduce their guard of the nests. This would result in easy access of the nests to enemies and predators of fish eggs and fingerlings.
C6H12O6+6O2--->6CO2+6H2O+energy
Oxygen(O2) is used to break down glucose(C6H12O6) into energy so the answer is b