Either a. Or d. Cause they can be reversible but !usaly inhabition in enzymes doesnt bind so ide guess a.
The answer is RNA because DNA for human .
It changes because it goes through phases of growth and changes size and it developed more.
Hope this helps.
The Alberts and Kaibab squirrels differed from their respected paths by
geologic isolation. The two species of squirrels were separated and then
eventually adapted to their respected environments.
