Why Would Exothermic Organisms Need More Efficient Respiratory Systems Than

Multiple Choice

Why would exothermic organisms need more efficient respiratory systems than endothermic organisms?

A) They need to perform more anaerobic respiration
B) They need to move more quickly
C) Their metabolic reactions are less efficient and require more oxygen
D) They need to perform more aerobic respiration
E) They do not live in water and must pull oxygen out of air instead