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Which statement best describes how speciation occurs?

A. Gene flow brings in new alleles, increasing variation within the population’s offspring.

B. A changing environment improves conditions by reducing competition for food, water, and shelter, and reproduction is increased.

C. A small population is able to obtain more resources, so more offspring are born and survive each year.

D. A geographically isolated population experiences changes in gene frequency, and individuals with the most suitable adaptations produce the most surviving offspring.

User Ebeland
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1 Answer

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The answer is A, A gene flow brings new in new alleles increasing variation within the population of spring
User Shanntel
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