Which reproductive adaptation is characterist | vedclass

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(B) Most vertebrate animals that live on land have an adaptation that allows $Internal \ fertilization$,whereby the male deposits sperm directly into

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Internal fertilization

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(B) Most vertebrate animals that live on land have an adaptation that allows $Internal \ fertilization$,whereby the male deposits sperm directly into the female body. This is advantageous because sperm require a liquid medium to swim,and the moist female reproductive tract provides this environment. In contrast,aquatic vertebrate animals live in water,which allows sperm to be easily released into the surrounding medium to swim toward the female gametes,making $External \ fertilization$ more common in aquatic environments.

Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic vertebrates?

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