The Living World Ques 8
It is much easier for a small animal to run uphill than for a large animal, because of their lower mass relative to their muscle strength.
[2016]
(a) it is easier to carry a small body weight.
(b) smaller animals have a higher metabolic rate.
(c) small animals have a lower $O_2$ requirement.
(d) the efficiency of muscles in large animals is not necessarily less than in the small animals.
Show Answer
Answer : b
Hints & Solutions
(b) Basal metabolic rate is proportional to body size. So smaller animals have a higher metabolic rate. Hence production of energy is more.