Favorable adaptations build up in a population over many generations due to long-term environmental change. what is the most likely result of this process? a) extinction b) speciation c)loss of habitat d)forced migration

The answer is; B

Natural selection acts on the variability of genotypes in a population. As the environment changes, the alleles in the population that confer an advantage in the changing environment  are preserved as the disadvantageous alleles are weeded out over generations. This way the population changes through the process of speciation.

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