A Long-Term Study on Guppies Illustrates the Effect of Predation

question 6

Multiple Choice

A long-term study on guppies illustrates the effect of predation on life history traits. In the study, streams with killifish (which prey on immature guppies) had guppies that ____, compared to guppies in streams with cichlids (which prey on mature guppies) .

• A)were smaller
• B)had larger broods per year
• C)reproduced at an earlier age
• D)were smaller and had fewer broods per year
• E)had fewer broods per year and reproduced at an older age

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Definitions:

Social Interest

The welfare or well-being of the general public and society at large, considering the collective needs rather than individual interests.

No Personal Financial Responsibility

A situation where individuals do not bear direct financial consequences for their actions, often due to insurance, subsidies, or other protective measures.

Corporations

Legal entities that are separate from their owners, providing limited liability protection, and have the ability to raise capital through selling shares.

Invisible Hand

A metaphor introduced by Adam Smith to describe the self-regulating nature of the market whereby individuals working for their own interest inadvertently benefit society.