Fact 1: Mammals generate heat mainly by keeping their metabolic rate high.

Fact 2: Shrews have the highest metabolism of any mammal.

Given the two facts above, answer the question "What metabolic rate does a shrew have?" with the following options: 
- allow growth
 - High rate
 - four limbs
 - complex
 - glucose
 - Energy.
 - more abundant
 - energy


 

  High rate       