- 7- Continental drift has played a major role in macroevolution
- 8- Connection: Plate tectonics may imperil human life
- 9- Five mass extinctions have altered the course of evolution
- 10- Adaptive radiations have increased the diversity of life
- 11- Genes that control development play a major role in evolution
- 12- Evolution Connection: Novel traits may arise in several ways
- 13- Evolutionary trends do not mean that evolution is goal directed