Unity and Diversity A.7 Classification and Cladistics (id: 67e912e3e)

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]
Organisms may be reclassified usin4 bb7o:lfeb h tc:jntw(l 0:/og evidence from cladistics. Cladoed0xr0p 78.* zcsve tehfwv07gram 1, based on DNA comparisons of several species, represents the historical view of relationships among arachnids. Cladogram 2, based on DNA comparisons of many more species than Cladograf r.0e7dx8v0* vhe pcz7 0swetm 1, challenges the historical view.


What is suggested by Cladogram 2 that is not suggested by Cladogram 1?

A. Horseshoe crabs are a sister group of arachnids.
B. Horseshoe crabs are a group within arachnids.
C. Sea spiders are an ancestor of arachnids.
D. Sea spiders are not an ancestor of horseshoe crabs.


参考答案:  B


本题详细解析:

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