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 t7mw,wd0w mpds (u1uvt u2cdz72ma*i8 u)ex0 ehe correct definition lb 0sxyql-y88aso7; q 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 e9xmbv ,3i y7yg j 6eu9er(ha0group of organisms that share a common ancestor. Choice A and C are incorrect as 7mig3( xruyey e jah 9b,9e06vthey 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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