Term
| survival and reproduction |
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Definition
| Natural selection favors behaviors that increase ___ and ___. |
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Definition
| Mating behavior is directed by ___, a type of natural selection in which differences in reproductive success result from differences in mating success. |
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Term
| stoplight parrotfish and orangutans |
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Definition
| Morphology directs mating behavior in __ and ___. |
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Definition
| Many social interactions are ___. |
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Definition
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Definition
| In ___ nonreproductive individuals may sacrifice their lives protecting the reproductive individuals from predators. |
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Term
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Definition
| Altruistic behavior can be explained by ___: the total effect an individual has on multiplying its genes by producing offspring and by helping close relatives to produce offspring |
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Term
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Definition
| ___ proposed a formula for predicting when natural selection would favor altruistic acts |
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Term
- the benefit to the recipient
- the cost to the altruist
- the coefficient of relatedness |
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Definition
| What are the three key variables in Hamilton's formula for predicting altruistic acts? |
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Term
| the coefficient of relatedness |
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Definition
| ___ is the probability that two relatives may share the same genes |
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Term
| benefit; relatedness; cost |
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Definition
| Natural selection favors altruism when the ___ to the recipient multiplied by the ___ exceeds the ___ to the altruist |
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Term
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Definition
| the formula for predicting altruistic acts is called ___. |
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Term
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Definition
| ___ is the kind of natural selection that favors altruistic behavior by enhancing relatives' reproductive success. |
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Definition
| altruistic behavior toward unrelated individuals can be adaptive if the aided individual returns the favor in the future. this type of altruism is called ___. |
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Definition
| Reciprocal altruism is limited to species with ___ in which individuals have many opportunities to exchange aid. |
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Definition
| ___ is a system of information transfer through observation that influences the behavior of individuals in a population |
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Definition
| ___ produce a complex set of alarm calls |
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Term
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Definition
| human culture is combined with evolutionary theory in the discipline called ___. |
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