Answer:
D=Human
C=Chimpanzee
B=Mouse
A=Snake
Explanation:
Snakes do not have fingers/hands therefore they don't have anything in common with the other organisms besides from being alive.
Next is the mouse because they have hands but have a tail and are from a different species/group than humans and chimpanzees.
Next is chimpanzees because they are in the same class as humans but humans are more advanced.
It is carbon dioxide. Photosynthesis use carbon dioxide to produce oxygen.
That would be a physical change
