Answer:
Mutations in genetic code occurs when DNA is being duplicated.Any changes in the base pairs leads to mutations by trasition or transversion. Change in amino acid leads to change in sequence and thus, mutation. This si carried on to new generation, if it takes place in germ cells.
Answer:
A
Explanation:
Since the water occupies a bigger space the organisms that reproduce in freshwater have a bigger area to reproduce.
There would be more hours of sunlight at the equator