A population of bats is found on an island.  A detailed study of the bats reveals that the average wing length has not changed over many generations.  Bats with longer wings are often blown out to sea in wind storms while bats with shorter wings are not as good at catching insects.  Average length winged bats live the longest and have the most offspring.  What evolutionary force is acting here? Group of answer choices a. migration b. directional (natural) selection c. stabilizing (natural) selection d. drift

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A:

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Ecological adaptations

An ecological adaptation is any morphological, physiological, or behavioral trait of an organism that allows it to survive and reproduce in a habitat or ecosystem. Adaptation is a biological mechanism by which an organism gradually gets more acclimated to its surroundings.