Question

What behavioral change would you expect to see in the brightly colored red crabs over time?

Answer 1

Explanation:

A student hypothesized that a human underwater would show a similar diving reflex (bradycardia—the slowing of the heart rate) to that of a whale or a seal. She tested her hypothesis by recording her pulse rate at different depths in a swimming pool of uniform temperature and light intensity. The results of her experiment are shown in the following graph.

The results of the experiment show that, as depth increases, the human pulse rate

decreases

A tentative conclusion that can be drawn from this experiment is that

bradycardia probably does occur in humans

A student hypothesized that a human underwater would show a similar diving reflex (bradycardia—the slowing of the heart rate) to that of a whale or a seal. She tested her hypothesis by recording her pulse rate at different depths in a swimming pool of uniform temperature and light intensity. The results of her experiment are shown in the following graph.

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