Suppose you are standing at the edge of a cliff and
Chapter 40, Problem 40.3(choose chapter or problem)
Suppose you are standing at the edge of a cliff and suddenly slipyou barely manage to keep your balance and avoid falling. As your heart races, you feel a burst of energy, due in part to a surge of blood into dilated (widened) vessels in your muscles and an upward spike in the level of glucose in your blood. Why might you expect that this fight-or- flight response requires both the nervous and endocrine systems?
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