The Predatory Fish Rely on Visual Cues and Speed to Capture

question 39

Multiple Choice

The predatory fish rely on visual cues and speed to capture mosquitofish. Mosquitofish rely on speed and visual cues to avoid the predatory fish. Which adaptation(s) might help the predators survive in ponds that are home to faster mosquitofish?
1) directional selection for increased speed
2) stabilizing selection for speed that matches that of the mosquitofish
3) change in hunting behavior that replaces reliance on visual cues with reliance on tactile cues, which can be used to hunt at night
4) change in hunting behavior that eliminates speed in favor of better camouflage, which permits an ambush strategy

• A) 1 only
• B) 2 only
• C) either 1 or 3
• D) either 2 or 3
• E) 1, 3, or 4

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Definitions:

Tariffs

Taxes imposed by a government on imported goods to protect domestic industries or to raise revenue.

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Governmental assistance provided directly to individuals in the form of cash payments or services, aimed at improving the living conditions of the economically disadvantaged.

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The governmental actions, policies, and military measures taken to protect a country from external threats and ensure national security.

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Involves government policies and measures aimed at shielding domestic industries from foreign competition, using tools such as tariffs, quotas, and subsidies.