Lesson summary for:
Classification and Evolution
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Students construct an evolutionary tree of imaginary animals (Caminalcules) to illustrate how modern classification schemes attempt to reflect evolutionary history.
Two class periods
- Biological evolution accounts for diversity over long periods of time.
- Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- During the course of evolution, only a small percentage of species have survived until today.
- An organismís features reflect its evolutionary history.
- The fossil record documents the biodiversity of the past.
- The fossil record contains organisms with transitional features.
- The fossil record documents patterns of extinction and the appearance of new forms.
- Anatomical similarities of living things reflect common ancestry.
- Natural selection acts on the variation that exists in a population.
- Classification is based on evolutionary relationships.
- Evolutionary trees (i.e., phylogenies or cladograms) are built from multiple lines of evidence.
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