本题目来源于试卷: Unity and Diversity A.7 Classification and Cladistics，类别为 IB生物学
[单选题]
In cladistics, which is2 0. v,kvghni.nyve(j the cors3hjbh,,rt z0 m +ftbc;b1h2jrect definition of a clade?
A. A group of organisms with the same DNA sequence
B. A group of organisms that share a common ancestor
C. A group of organisms with different DNA sequences
D. A group of organisms that do not share a common ancestor
参考答案: B
本题详细解析:
Choice B is the correct definition fok2.wu 9y:vnuk 7 i0qxhr a clade, a group of organisms that share a common ancestor. Choice A and& uwy0vn2u.q k9:kxi7 hnbsp;C are incorrect as they do not feature the idea of a common ancestor. Choice D is incorrect because organisms within a clade do share a common ancestor.
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