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 is y0q6ui,0jyc 4mno5jif o)h1v the correct defik+wej+ nzm6 neg;1;mjo09 qm gnition 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 for a clade, a group of organisms that ewny )l9)zzo l6l+ h1qshare a common ancestor. Choice A and C are incorrect as they do not feature the idea of a common ancestor. Choicyq+zll)n6lo )ezhw91 e D is incorrect because organisms within a clade do share a common ancestor.
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