Shivering occurs when many muscles contract a little bit all at once.
Heat production is increased by shivering and non-shivering thermogenesis .
Heat is produced when many muscles contract a little bit all at once.
what happens when many muscles contract a little bit all at once?
(A) heat is produced
(B) To keep their body heat.
(C) biceps
(D) sweating
(E) digestion
(F) rapid expansion
(G) preventing heat transfer
(H) death