Question

It is much easier for a small animal to run uphill than for a large animal, because
(a) it is easier to carry a small body weight. (b) smaller animals have a higher metabolic rate. (c) small animals have a lower O2 requirement. (d) the efficiency of muscles in large animals is less than in the small animals.

Answer 1

The correct answer is (c) small animals have a lower O2 requirement.