Question

which process is the total of all the chemical reactions in an organism?
o homeostasis
o migration
o respiration
o metabolism

Explanation:

Metabolism encompasses all chemical reactions in an organism, including anabolism (building molecules) and catabolism (breaking down molecules). Homeostasis is the maintenance of a stable internal environment. Migration is the movement of organisms from one place to another. Respiration is a specific set of metabolic reactions for energy - production.

Answer:

metabolism