Answer
Mammals shiver to generate heat from ATP. This occurs because the rapid and repeated contraction of the animal's muscles converts ATP to ADP and releases heat as a byproduct. Mammals and birds use stored brown fat to undergo a cellular process that converts organic fuel into heat without generating ATP.
Work Step by Step
Mammals shiver to generate heat from ATP. This occurs because the rapid and repeated contraction of the animal's muscles converts ATP to ADP and releases heat as a byproduct. Mammals and birds use stored brown fat to undergo a cellular process that converts organic fuel into heat without generating ATP.