Your heartbeat, digestion, and pupil dilations are processes regulated by the nervous system. A. involuntary; somatic B. involuntary; autonomic C. controllable; somatic D. voluntary; somatic E. voluntary; autonomic

Option B

Explanation:

Involuntary functions of the body system; processes taking place in the body that is done without conscious efforts such as digestion, bloodflow, the heartbeat are controlled by the autonomic nervous system which is a part of the peripheral nervous system.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.