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 identifies a si e onarut0xt87kn6ql2 /f /*uh/z8 qa vmilarity and .z(p13km6hwtwv. ez stvel 1 / difference between natural selection and selecti t .vlt1w.1z3 s 6(e/wphvem kzve breeding?

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.
|