Predators That Are Keystone Species Can Maintain Species Diversity in a Community

question 35

Multiple Choice

Predators that are keystone species can maintain species diversity in a community if they

• A) competitively exclude other predators.
• B) prey on the community's dominant species.
• C) reduce the number of disruptions in the community.
• D) prey only on the least abundant species in the community.

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Definitions:

Bundle of His

A group of specialized heart muscle cells that are designed for electrical signaling, responsible for carrying impulses from the AV node to the heart's ventricles.

Pulmonic Valve

The heart valve that separates the right ventricle from the pulmonary artery and regulates blood flow to the lungs.

Aortic Valve

A heart valve located between the left ventricle and the aorta that regulates blood flow from the heart into the aorta.

Base of Heart

The upper portion of the heart, including parts of the atria and the large vessels that lie at the heart's base.