Question

unlike photosynthesis, cellular respiration occurs in
a animal cells only.
b all but plant cells.
c plant cells only.
d plant and animal cells

Explanation:

Cellular respiration is a process to release energy from glucose. Both plant and animal cells need energy, so it occurs in both. Option A is wrong (animal cells alone), C is wrong (plant cells alone), B is wrong (not excluding plant cells).

Answer:

D. plant and animal cells