You are presented with the question "What is the result of a dolphin keeping a high metabolism rate?" and the following answer choices: 
- generate blood cells
 - generate heat
 - overheating
 - develop cancer
 - kinetic energy
 - aerobic capacity
 - exercise
 - Energy.

Now knowing that mammals generate heat mainly by keeping their metabolic rate high and all dolphins are mammals and all mammals breathe air, choose the best answer.


 

  generate heat       