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Unit 1:
Ch. 1
Ch. 2
Ch. 3
Interlude A
Unit 2:
Ch. 4
Ch. 5
Ch. 6
Ch. 7
Ch. 8
Ch. 9
Interlude B
Unit 3:
Ch. 10
Ch. 11
Ch. 12
Ch. 13
Ch. 14
Ch. 15
Interlude C
Unit 4:
Ch. 16
Ch. 17
Ch. 18
Ch. 19
Interlude D
Unit 5:
Ch. 20
Ch. 21
Ch. 22
Ch. 23
Ch. 24
Ch. 25
Interlude E
The animations require the latest Flash 7 and Shockwave plug-ins.
Interlude A.1: Activity: The diversity of species on Earth
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Review the information presented in the species-scape presented in figure A.4.

Interlude A.2: Activity: Human population explosion
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Learn more about the rapid explosion of the human population in the last few hundred years. Interactive controls at the end of the activity allow you to test the effects of various birth and death rates.

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