_____ refers to the idea that more adaptive variants of a organism replace less adaptive variants of a organism over time.

Question

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Natural selection is the process by which more adaptive traits are more likely to be passed down to future generations. This leads to the replacement of less adaptive variants over time. Xenophobia is the fear or hatred of strangers, and has no connection to the process of natural selection. Effective polygyny refers to a mating system in which some males monopolize access to multiple females, and functionality is a broad term referring to the extent to which something performs its intended function.

_____ Refers to the Idea That More Adaptive Variants of a Organism