Question

For which of the following organisms thermoregulation is energetically expensive?

(a) Large animals

(b) Elephants

(c) Humming birds

(d) Man

The question was posed to me during an internship interview.

This is a very interesting question from Organisms and Populations topic in chapter Organisms and Populations of Biology – Class 12

Answer 1

Right answer is (c) Humming birds

Explanation: Thermoregulation is energetically expensive to humming birds because of their small size. The smaller is the animals; more is the heat loss from the body. Thermoregulation is energetically expensive for small animals and shrews.