You are presented with the question "What metabolic rate does a shrew have?" and the following answer choices: 
- allow growth
 - High rate
 - four limbs
 - complex
 - glucose
 - Energy.
 - more abundant
 - energy

Now knowing that mammals generate heat mainly by keeping their metabolic rate high and shrews have the highest metabolism of any mammal, choose the best answer.


 

  High rate       