Which of the following statements is most accurate? a) Humans evolved from chimpanzees. O b) If allele frequencies change across generations in a population, natural selection must be the cause. c) An individual evolves in response to a change in environment. d) Mutation is the ultimate source of new alleles, but the fate of such mutations depends in part on how they impact fitness. e) All traits are adaptations, although for some we haven't yet figured out what they are adaptations for.

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Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.