In _____ isolation, it is physically impossible for two species to mate with each other, often because their genitalia do not fit together properly.
Question: In _____ isolation, it is physically impossible for two species to mate with each other, often because their genitalia do not fit together properly.
One of the mechanisms of speciation is reproductive isolation, which prevents gene flow between populations. In mechanical isolation, it is physically impossible for two species to mate with each other, often because their genitalia do not fit together properly. This can happen when two closely related species evolve different mating structures or behaviors. For example, some orchid species have complex flowers that can only be pollinated by a specific insect species. If the insect's mouthparts do not match the shape of the flower, pollination and fertilization cannot occur.
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