It would be C because it didn't change what amino acid it was
The chemical structure shows what the red blood cell does.and the physical appearance also shows the same.
The floor of the rain forest will dry up and die, causing the animals that live down on the floor to die from no food or water, that would then cause the animals that live in the canopy to die from lack of food. and a lack of water would eventually kill the taller higher canopy.