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Continuity and Change D.10 Natural Selection (id: 69fab7faf)

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admin 发表于 2024-2-5 14:05:08 | 显示全部楼层 |阅读模式
本题目来源于试卷: Continuity and Change D.10 Natural Selection,类别为 IB生物学

[单选题]
Which of the following (i:dhv;2r48 s t5 edil5fiiuv7 cg:hmidenwl wgwvt+k3:u-*f a8rtifies a similarity and difference between natural selection and selective bree8-vwwlu3w* fk+:atg rding?


A.
B.
C.
D.


参考答案:  A


本题详细解析:
Choice A is correct because in both selective breeding and natural selection, favourable characteristics are “selected”, by either the environment (natural selection) or humans (selective breeding). Choice B is incorrect because natural selection doesn’t increase variation, it influences the proportion of existing variants. Choices C and D are incorrect because natural selection is not controlled by humans and does not contribute to the domestication of animals.

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