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Interpreting Cladograms and Phylogenetic Trees

Biological Classification, Taxonomy, and Phylogenetics

7th Grade·Science·Open Global Science

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Read evolutionary trees to deduce common ancestry, shared derived characteristics, and relative divergence times.

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Biological Classification, Taxonomy, and Phylogenetics

7th Grade · Science · Open Global Science

6 lessons

Goal

Classify living organisms using Linnaean taxonomy, dichotomous identification keys, and phylogenetic branching trees.

6 lessons

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The Three-Domain and Six-Kingdom Classification SystemUp next
Hierarchical Taxonomic Ranks from Domain to SpeciesNot started yet
Constructing and Interpreting Dichotomous KeysNot started yet
Using Anatomical Traits for Organism IdentificationNot started yet
Interpreting Cladograms and Phylogenetic TreesYou are here
Molecular Evidence in Modern TaxonomyNot started yet

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Learning standards covered

OGS.8.LS.3Open Global Science Standards 2026™ · 7th Grade

Classify living organisms into taxonomic groups based on cellular and anatomical characteristics, constructing and utilizing dichotomous keys and phylogenetic tools.