Which of the following is not a prezygotic isolating mechanism for two species found in the same geographical location? ? After fusion of gametes, the resulting zygote dies ? The two species are active during different parts of the day. ? The two species mate during different times of the year. ? The two species have incompatible genitalia.
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Step 1: A prezygotic isolating mechanism prevents the formation of a zygote. Show moreā¦
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An example of postzygotic isolating mechanism between closely related species would be which of the following? One species flowers in April, the other in August. The two species are pollinated by different species of bees. A zygote produced by syngamy of sperm and egg of the two species contains an uneven number of chromosomes. The pollen from one species will not germinate on the stigma of the other. One species is terrestrial, the other totally aquatic.
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