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What Does Recent Evidence from Molecular Systematics Reveal About the Relationship

Question 34

Multiple Choice

What does recent evidence from molecular systematics reveal about the relationship between grades and clades?


A) There is no relationship.
B) Some, but not all, grades reflect evolutionary relatedness.
C) Grades have their basis in, and flow from, clades.
D) Each branch point on a phylogenetic tree is associated with the evolution of a new grade.

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