The High Body Temperature of Birds and Mammals is Due

Question

The high body temperature of birds and mammals is due to
A) behaviors such as basking in the sun and seeking shade.
B) the exchange of gases and nutrients via the placenta.
C) the fur that insulates them.
D) the presence of sweat, scent, and sebaceous glands.
E) their high metabolic rates.

Accepted Answer

Birds and mammals maintain high body temperatures primarily due to their high metabolic rates, which generate heat as a byproduct of energy production.