WVGSA Grade 5 Science Practice Questions - West Virginia General Summative Assessment Grade 5 Science Exam

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An invasive species of fish, Asian Carp, is introduced into a river system. Asian Carp feed aggressively on massive quantities of plankton, competing with native paddlefish and juvenile game fish. What is the most likely impact on native fish species?

Native fish populations will increase because carp protect them from predators. Native fish populations will decline due to intense competition for limited plankton food resources. Native fish will stop eating plankton and begin eating forest trees. Plankton levels will double because carp release oxygen.

Correct Answer:

Native fish populations will decline due to intense competition for limited plankton food resources.

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