Chapter 8 Flashcards: Evolution and Natural Selection

Chapter 8 Flashcards: Evolution and Natural Selection

Hint physical or chemical agents that can cause mutations mutagens
Hint a random change in allele frequencies of a population genetic drift
Hint when an allele frequency reaches 100% in a population and no further genetic drift is possible genetic fixation
Hint small population size may lead to reduced genetic diversity by genetic drift bottleneck
Hint the movement of alleles between populations gene flow
Hint a trait that enables the organism to leave offspring by natural selection reproductive fitness
Hint inherited traits of an organism that enhance its survival and reproduction in its environment adaptation
Hint descendants of a common ancestor are usually found geographically close together biogeography
Hint structures of related species that are similar because of common ancestry homologous structures
Hint evolution of superficially similar structures due to parallel adaptations to similar environments convergent evolution
Hint parallel adaptations to similar environments can yield these anatomical structures that are results of convergent evolution analogous structures
Hint dating a common ancestor among related species based on accumulation of mutations molecular clock

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