In a lake in south africa, guppies are eaten by the pike fish. the larger the guppy, the more difficulty it has escaping its pike fish predator. which type of selection is this

Question

Biology

Julie

22 March, 11:11

In a lake in south africa, guppies are eaten by the pike fish. the larger the guppy, the more difficulty it has escaping its pike fish predator. which type of selection is this

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Wolfe · Answer 1

Negative directional selection

Negative directional selection is a type of selection in which an extreme phenotype is favored over other phenotypes and there is purging changes that cause deleterious impacts on the fitness of the host. From the question given above, the smaller guppies are favored over the larger guppies and this type of selection is negative directional selection.