Answer:
OD. The cat has been injured when it landed on its wrist.
Explanation:
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
Having white fur in the winter to blend in with the snow
