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🧬ap biology review

Nodes in AP Biology

Verified for the 2027 exam
Verified for the 2027 exam•Fiveable Content Team

Definition

In phylogenetics, nodes are points on a tree where a lineage splits into two or more separate lineages. They represent the most recent common ancestor of the lineages that branch from them.

This definition is part of Fiveable's AP Biology review, which also has guided practice questions.