Suppose That Members of Two Populations Are Separated by a Geographic

question 24

Essay

Suppose that members of two populations are separated by a geographic barrier and begin to diverge genetically. Many generations later, when the barrier is removed, the two populations can interbreed, but the hybrid offspring do not survive and reproduce well. Explain how natural selection might lead to the evolution of more effective prezygotic barriers in these species.

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The interest rate paid by fixed-income securities, typically expressed as a percentage of the principal amount.

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The specific date and time when an option, futures contract, or similar financial instrument becomes void and ceases to trade.

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