Download Ch 22 Study Questions

Chapter 22 Study Questions: Descent with Modification
Name
1) What are “evolutionary adaptations”?
Outline the evolutionary adaptations of the Galapagos finches.
Give two other examples of evolutionary adaptations.
2) What are fossils?
In what type of rock are most fossils found?
How is this type of rock formed?
How is fossil age related to position in the rock layers?
3) What was Lamarck’s proposal for evolution?
What are two flaws in Lamarck’s idea?
4) What are the seven major taxonomic categories as developed by Linnaeus?
How do these “fit” with Darwin’s proposal of descent with modification?
5) Summarize the three main ideas that comprise Darwin’s theory of evolution by natural selection.
6) What is meant by “artificial selection”?
How did this influence Darwin’s thinking?
7) What is the definition of “population”?
8) Complete the following chart for the various lines of evidence supporting evolution:
Line of Evidence
Explanation (What is it? How does it support
evolution?)
Example
Biogeography
Fossil Record
Homologous structure
Vestigial organs
Comparative embryology
Molecular biology
9) An orange grower discovered that most of his trees were infested with destructive mites. He sprayed
the trees with insecticide, which killed 99% of the mites. Five weeks later, most of the trees were
infested again, so he sprayed again, using the same quantity of the same insecticide. This time, only about
half the mites were killed. Explain why the spray did not work as well the second time.
10) Do individual organisms evolve?
What is the smallest biological unit that can evolve over time?