Download chapter the theory of evolution

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CHAPTER
18
THE THEORY OF EVOLUTION
Get the Big Picture
Find the blue headings in Section 18.1 of your textbook. Use a blue heading to fill in the
rectangles in the organizer below. One rectangle has been filled in for you.
Charles Darwin and Natural Selection
A
B
C
D
Fossils interested
scientists in
evolution
Darwin studied the
natural world during the
voyage of the Beagle
Darwin’s observations in
the Galápagos
Darwin completed
his studies
in England
E
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Darwin’s explanation
for evolution
Each statement below goes with one of the red headings in the rectangles above. Write the
letter of each red heading on the line in front of the statement it goes with.
C
________
1. Darwin saw many life forms on the Galápagos Islands. He was convinced that species
change over time.
E
________
2. Darwin’s theory of evolution by natural selection explains how populations change
over time.
A
________
3. Fossil records made scientists wonder if plant and animals species changed over time.
B
________
4. In 1831, Darwin became a naturalist on a ship called HMS Beagle.
D
________
5. Back in England, Darwin did more research. He learned that some plants and animals
have traits that help them survive.
BIOLOGY: The Dynamics of Life CHAPTER 18
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