Which of the following statements about natural selection are correct? Select ALL choices that apply. Natural selection works toward a goal of increasing the complexity of organisms. Natural selection produces traits in order to adapt to future changes in the environment. Natural selection is based on the relative fitness of different phenotypes. The direction of natural selection on a trait can reverse if the environment changes. Natural selection requires that phenotypic variation in traits affecting fitness is heritable.
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Regarding the nature of natural selection, which of the following is NOT an accurate statement? (Select one or more as appropriate) Populations evolve traits by natural selection that will be useful for future environmental changes. Natural selection acts on the phenotypes of individuals, but evolution occurs with changes in allele frequencies in populations. Natural selection can and does produce features that are less than perfect adaptations. Natural selection operates as a systematic, nonprogressive mechanism.
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all of the following statements correctly describe some part of natural selection, except a. variation in a heritable that is required for natural selection to take place b. typically, more offspring are produced that can survive c. traits that enhance survival and reproduced become more prevalent in future generations d. fitness of an organism is directly equivalent to its survival ability
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Evolution ______ a. is natural selection b. is heritable change in a line of descent c. can occur by natural selection d. $b$ and $c$ are correct
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