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This lesson introduces students to the building of cladograms as evolutionary trees, showing how shared derived characters can be used to reveal degrees of relationship.
One class period.
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.
- Scientists use anatomical evidence to infer the relatedness of taxa. (LS4.A)
- Classification is based on evolutionary relationships.
- Evolutionary trees (i.e., phylogenies or cladograms) are built from multiple lines of evidence.