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5.1

evidence of evolution

Essential Idea:  There is overwhelming evidence for the evolution of life on Earth.

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Nature of Science:  Looking for patterns, trends, and discrepancies: there are common features in the bone structure of vertebrate limbs despite their varied use.

UNDERSTANDINGS:

  • 5.1.U1  Evolution occurs when heritable characteristics of a species change.

  • 5.1.U2  The fossil record provides evidence for evolution.

  • 5.1.U3  Selective breeding of domesticated animals shows that artificial selection can cause evolution.

  • 5.1.U4  Evolution of homologous structures by adaptive radiation explains similarities in structure when there are differences in function.

  • 5.1.U5  Populations of a species can gradually diverge into separate species by evolution.

  • 5.1.U6  Continuous variation across the geological range of related populations matches the concept of gradual divergence.

APPLICATIONS & SKILLS:

  • Application:  Development of melanistic insects in polluted areas.

  • Application:  Comparison of the pentadactyl limb of mammals, birds, amphibians, and reptiles with different methods of locomotion.

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