Some Biologists Have Suggested That Overexploitation in the Harvesting of Some

question 50

Multiple Choice

Some biologists have suggested that overexploitation in the harvesting of some sharks (i.e. top predators) has caused drastic changes in marine communities. Which of the following would you expect after removal of a top predator from a community?

• A)population growth of prey species
• B)population decline of prey species
• C)no change in marine communities

---

Definitions:

AV Node

The atrioventricular node, a part of the heart's electrical control system that acts as a gatekeeper for electrical impulses between the atria and ventricles.

Parasympathetic Nerve

Nerves that are part of the autonomic nervous system, responsible for conserving energy and slowing down bodily functions.

Sympathetic Nerve

Part of the autonomic nervous system that prepares the body for stress-related activities, often described as the "fight or flight" response.

Potassium Ions

Charged particles of potassium that are essential for various physiological processes in the body, including nerve signal transmission and muscle contraction.