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The formation of a "search image" by predators can make them pick out one phenotype in the prey over others. This is an example of which of the following?Multiple choice question.Positive frequency-dependent selectionDisruptive selectionNegative frequency-dependent selectionSexual selection

Question

The formation of a "search image" by predators can make them pick out one phenotype in the prey over others. This is an example of which of the following?Multiple choice question.Positive frequency-dependent selectionDisruptive selectionNegative frequency-dependent selectionSexual selection

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Solution

The formation of a "search image" by predators that makes them pick out one phenotype in the prey over others is an example of "Negative frequency-dependent selection".

Here's why:

Negative frequency-dependent selection is a type of natural selection in which the fitness of a phenotype decreases as it becomes more common. In this case, if a predator forms a "search image" for a particular phenotype of prey, that phenotype becomes more likely to be preyed upon and therefore less fit. As a result, other phenotypes become more common, leading to a balance of phenotypes in the population. This is different from positive frequency-dependent selection, where the fitness of a phenotype increases as it becomes more common.

Disruptive selection and sexual selection are different types of natural selection. Disruptive selection favors extreme phenotypes over intermediate ones, while sexual selection involves selection for traits that increase an individual's chances of mating success. Neither of these types of selection are illustrated by the formation of a "search image" by predators.

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