What is the mammalian diving reflex?
A) a. A complex cardiovascular reflex that constricts blood flow everywhere but the brain
B) c. The ability of mammals to over time train their bodies to maintain more dissolved oxygen in the bloodstream so that they can hold their breath for ever longer periods of time
C) b. An inherent instinct that signals the mammal when to surface for oxygen
D) d. A mammal's ability to consciously hold one's breath while submerged
Answer: A) a. A complex cardiovascular reflex that constricts blood flow everywhere but the brain