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, what metabolic rate does a shrew have?
Available choices:
(A). allow growth
(B). High rate
(C). four limbs
(D). complex
(E). glucose
(F). Energy.
(G). more abundant
(H). energy
(B).