The Living World Question 2

2. It is much easier for a small animal to run uphill than for a large animal, because

[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 less than in the small animals.

Show Answer

Answer : b

Hints & Solutions

(b) Basal metabolic rate is inversely proportional to body size. So smaller animals have a higher metabolic rate. Hence production of energy is more.