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Chapter 22 Objectives
AP Biology 2010-2011
Descent with Modification: A Darwinian View of Life
The Historical Context for Evolutionary Theory
 Explain the mechanism for evolutionary change proposed
by Charles Darwin in On the Origin of Species.
 . Define evolution and adaptation.
 Explain the mechanism for evolutionary change proposed
by Jean-Baptiste de Lamarck. Explain why modern
biology has rejected Lamarck’s theories.
The Darwinian Revolution
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Key Terms
artificial selection
biogeography
catastrophism
descent with modification
endemic
evolution
evolutionary adaptation
fossil
Describe how Darwin’s observations on the voyage of
the HMS Beagle led him to formulate and support his
theory of evolution.
Explain what Darwin meant by “descent with
modification.”
Explain what evidence convinced Darwin that species
change over time.
Explain how Linnaeus’ classification scheme fit
Darwin’s theory of evolution by natural selection.
Describe the three inferences Darwin made from his
observations that led him to propose natural selection
as a mechanism for evolutionary change.
Distinguish between artificial selection and natural
selection.
Explain why an individual organism cannot evolve.
Explain how the existence of homologous and vestigial
structures can be explained by Darwin’s theory of
natural selection.
Explain how evidence from biogeography supports the
theory of evolution by natural selection
gradualism
homologous structures
homology
natural selection
paleontology
sedimentary rock
taxonomy
uniformitarianism
vestigial organ