Found 0 resources for the concept: Present-day life forms are related to past life forms
Grade(s): K-2 3-5 6-8 9-12 13-16 Topics: Any topicAdaptationArtificial SelectionClassification/PhylogeneticsEvidence for EvolutionGenetic VariationGeologic TimeHistory of LifeNatural SelectionNature of ScienceRelevanceSpeciation
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