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Biologists Studying a Clade of Birds Are Interested in Whether

Question 106

Multiple Choice

Biologists studying a clade of birds are interested in whether a morphological feature of this clade is ancestral or derived.Which approach would best address this question?


A) More detailed morphological analysis of that trait, such as can be determined with a CT scanner
B) Determining the genetic basis of the trait
C) Use of the fossil record, especially near the root of the tree
D) Focusing on the ingroup
E) DNA analysis

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