Which of the following is not required for a behavioral trait to evolve by natural selection?
a. In each individual, the form of the behavior is determined entirely by genes.
b. The behavior varies among individuals.
c. An individual's reproductive success depends in part on how the behavior is performed.
d. Some component of the behavior is genetically inherited.

검증된 단계별 안내

Understand the concept of natural selection: Natural selection is a process where traits that enhance survival and reproduction become more common in successive generations of a population.

Identify the requirements for a trait to evolve by natural selection: For a trait to evolve, it must vary among individuals, affect reproductive success, and have a genetic basis.

Analyze option a: Consider whether a behavior must be entirely determined by genes for it to evolve. Traits can be influenced by both genetic and environmental factors.

Evaluate option b: Recognize that variation among individuals is crucial for natural selection, as it provides the raw material for evolution.

Consider option c and d: Determine if reproductive success and genetic inheritance are necessary components for the evolution of a behavioral trait.

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주요 개념

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Natural Selection

Natural selection is the process by which traits that enhance survival and reproduction become more common in successive generations of a population. It requires variation in traits, differential reproductive success based on those traits, and heritability of the traits. Traits that improve fitness are more likely to be passed on to future generations.

Genetic Inheritance

Genetic inheritance refers to the transmission of genetic information from parents to offspring through genes. For a trait to evolve by natural selection, it must have a genetic basis, meaning that some component of the trait is inherited. This allows advantageous traits to be passed down and become more prevalent in the population over time.

Behavioral Variation

Behavioral variation is the differences in behavior among individuals within a population. For natural selection to act on a behavioral trait, there must be variation in how the behavior is expressed. This variation provides the raw material for selection to act upon, allowing certain behaviors to be favored if they contribute to higher reproductive success.