Biology 12

503

Chapter

Contents

15.1 The Human Population:

Past Meets Present 504

Investigation 15-A: Cemetery

Studies of Human Demography 508

Thinking Lab:

Building Age Pyramids 512

15.2 What Is Earth’s

Carrying Capacity? 516

Thinking Lab: The Carrying

Capacity of the Food Supply 519

15.3 Negative Effects on

Carrying Capacity 523

Thinking Lab: Looking at

Global Warming 527

Investigation 15-B: How Can

the Tragedy of the Commons

Be Avoided? 530