TPO 30 1
Passage 1 Role of Play in Development 1
Passage 2 The Pace of Evolutionary Change 7
Passage 3 The Invention of the Mechanical Clock 13
TPO 31 19
Passage 1 Speciation in Geographically Isolated Populations 19
Passage 2 Early Childhood Education 21
Passage 3 Savanna Foemation 24
TPO 32 29
Passage 1 Plant Colonization 29
Passage 2 Siam, 1851?D1910 31
Passage 3 Distributions of Tropical Bee Colonies 34
TPO 33 38
Passage 1 The First Civilizations 38
Passage 2 Railroad and Commercial Agriculture in Nineteenth-century United States 45
Passage 3 Extinction Episodes of the Past 50
TPO 34 57
Passage 1 Islamic Art and the Book 57
Passage 2 The Development of Steam Power 62
Passage 3 Protection of Plants by Insects 67
TPO 35 74
Passage 1 Earths Age 74
Passage 2 The Development of Social Complexity 80
Passage 3 Seasonal Succession in Phytoplankton 86
TPO 36 93
Passage 1 Soil Formation 93
Passage 2 Early Ideas About Deep-sea Biology 99
Passage 3 Industrial Melanism: the Case of the Peppered Moth 106
TPO 37 112
Passage 1 Thales and the Milesians 112
Passage 2 Direct Species Translocation 117
Passage 3 Modern Architecture in the United States 126
TPO 38 135
Passage 1 Microscopes 135
Passage 2 The Raccoonss Success 141
Passage 3 Transgenic Plants 148
TPO 39 158
Passage 1 Early Writing Systems 158
Passage 2 The Extinction of Moa 161
Passage 3 Forest Fire Suppression 164
TPO 40 168
Passage 1 Ancient Athens 168
Passage 2 Latitude and Biodiversity 170
Passage 3 Amphibian Thermoregulation 172
TPO 41 175
Passage 1 Navajo Art 175
Passage 2 Climate of Venus 177
Passage 3 Trade and Early State Formation 179
TPO 42 183
Passage 1 Geographic Isolation of Species 183
Passage 2 Explaining Dinosa