Question

which of the following factors might influence cellular respiration? water intake acid addition water density temperature

Explanation:

Cellular respiration is an enzyme - mediated process. Temperature affects enzyme activity. Changes in pH (which can be caused by acid addition) also impact enzyme function and thus cellular respiration. Water intake, water density do not directly influence the core biochemical reactions of cellular respiration as significantly as temperature and pH - altering factors.

Answer:

acid addition, temperature