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 evidence from clad 2fyzb83elgju8)mf p/ loz28+m ps 2oqistics. Cladogram 1, ba 6ek3kw io/eg:6ck 3ruc*x0d rsed on DNA comparisons of several species, represents the historical view of relationships among arachnids. Cladogram 2, based on DNA comparisons of many mo06kc r*reo gd ck:3k w6ix/e3ure 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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