Researchers Studying Guppies in Trinidad Found That Guppies in Streams

question 54

Multiple Choice

Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.Which of the following is most important in driving the guppies to change their life history in face of predation?

• A)K-selection
• B)r-selection
• C)Density-independent factors
• D)Density-dependent factors
• E)Sexual selection

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Definitions:

Data Collection

The process of gathering and measuring information on targeted variables to answer relevant questions and evaluate outcomes.

Control Group

In experimental research, the group of participants that does not receive the treatment or intervention being tested, used as a baseline to measure the effects of the treatment.

Experimental Group

The group in an experiment whose experience is changed as part of the experiment.

Hypothetical Group

An imagined or theoretical group of individuals created for the purpose of discussion, analysis, or experimentation.