Question

Thermoregulation is energetically expensive for many organisms particularly

• A. Shrews
• B. Small animals
• C. Humming birds
• D. All of the above

Answer 1

The correct option is D All of the above

Thermoregulation

Thermoregulation is the ability of an organism to maintain constant body temperature.

• Thermoregulation is energetically expensive for organisms which are smaller in size like shrews, humming birds etc.
• Due to their small size, the ratio of surface area to volume is more and thus, these animals lose heat faster. Hence, they need a significant amount of energy to generate body heat. Thus, thermoregulation is energetically expensive for them.

Final Answer:
(d) All of the above