Which of these processes does not occur in animal cells? A. respiration B. photosynthesis C. chemical reactions D. making proteins

Photosynthesis cannot occur because animal cells are not self sufficient and cannot survive without another food source. There is also no chloroplast in order to conduct photosynthesis in the first place, so animal cells are unable to absorb energy from the sun.

Its B Photosynthesis bc it only occurs in plants that make food but animals find food and eat it.