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Bio ch 22

QuestionAnswer
what's evolution change in genetic composition of a population over generations
what are adaptations inherited traits that improve survival and reproduction in a specific environment
how does natural selection work individuals with favorable traits survive and reproduce nirem passing traits to offspring
what's artificial selection human breed organisms for desired traits
how did Malthus influence Darwin population grow faster than resources = competition
what did darwin observe about variation individuals vary in inherited traits
what did Darwin observe about reproduction more offspring are produced than can survive
what is differential survival individuals with advantageous traits survive and reproduce more
due to evolution what happens overtime to traits in the population favorable traits increase in the population
does natural selection act on individuals or populations individuals are selected, population evolve
does natural selection act on all traits only heritable ones
why doesnt natural selection stop environment change over time
do antibiotics cause bacteria to evolve and become resistant no some bacteria already have random mutations that make them resistant. when antibiotics are used they kill the non resistant bacteria and the resistant ones survive and reproduce. this leads to populations that are mostly resistant
what's homology similar structures due to common ancestry
whats direct/observable evolution the documented, real-time change in the genetic makeup, traits, or behaviors of a population within a short timeframe
what are vestigial structures remnants of structures with little/no functions ex snakes have pelvis/leg bone of walking ancestors
what does fossil evidence show changes in species overtime
what are analogous structures similar function, different ancestry
what causes analogous structures convergent evolution, when diff species adapt to similar environments
Created by: Lilyhowes
 

 



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