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 using 6ji3qny7neta- :ynv sd 4i+kilel y/r13 *6jvevidence from cq6()t 0ri+c 4dffdsf hladistics. Cladogram 1, based on DNA comparisons of several speciqrftf)ddh+(60ic 4 sfes, represents the historical view of relationships among arachnids. Cladogram 2, based on DNA comparisons of many more species than Cladogram 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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