Download Concept Check Questions

Concept Check Questions
Chapter 22 – Descent with Modification: A Darwinian View of Life
22.1
The Darwinian revolution challenged traditional views of a young Earth inhabited by unchanging species
1. Which of the individuals discussed in this section viewed species as fixed, and which viewed species as
being able to change over time?
2. What was Lamarck’s theory of evolution? Explain its significance.
22.2
In The Origin of Species, Darwin proposed that species change over time through natural selection
1. Describe how the following concepts relate to Darwin’s theory of evolution by natural selection:
overproduction of populations, limited resources, and heritable variation.
2. Explain why an individual organism cannot be said to evolve.
22.3
Darwin’s theory explains a wide range of observations
1. Explain why the following statement is inaccurate: “Anti-HIV drugs have created drug resistance in the
virus.”
2. How does Darwin’s theory account for both the similar mammalian forelimbs with different functions of
the human, cat, whale, and bat (shown below left) and the similar lifestyles of the Australian sugar glider
and the North American flying squirrel (shown below right).
Homologous structures
Sugar glider
3. Explain how the fossil record can be used to test predictions of evolutionary theory.
Flying squirrel