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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