Suppose That Kin Selection Has Evolved in a Group of Rodents

question 25

Multiple Choice

Suppose that kin selection has evolved in a group of rodents. The average female typically has four offspring in her lifetime. If, instead of raising her own offspring, a female helps her sister raise her offspring (i.e., her nieces and nephews) how many nieces and nephews would her sister have to have in order for her to experience no net loss in fitness?

• A)4
• B)16
• C)10
• D)12

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Definitions:

Binge-eating Disorder

A psychiatric condition characterized by recurring episodes of eating large amounts of food, often quickly and to the point of discomfort, accompanied by a feeling of loss of control during the binge.

Bulimia Nervosa

An eating disorder characterized by episodes of binge eating followed by compensatory behaviors, such as self-induced vomiting, aimed at preventing weight gain.

Body Weight

The total mass or weight of a person's body, comprising muscles, fat, bones, and other components.

Binge-purge Cycles

Patterns of behavior in eating disorders where excessive eating episodes are followed by efforts to avoid weight gain using methods such as vomiting or excessive exercise.