A First BiologyPDF电子书下载

Ⅰ．INTRODUCTION 1

Ⅱ．STRUCTURE OF A TYPICAL PLANT 5

Ⅲ．EXTERNAL FEATURES AND LIFE-HISTORY OF TWO ANIMALS 13

Ⅳ．STRUCTURE AND LIFE-STORIES OF SOME MORE ANIMALS 24

Ⅴ．FOOD OF PLANTS 40

Ⅵ．FOOD STORES IN PLANTS 50

Ⅶ．TRANSPIRATION IN PLANTS 60

Ⅷ．SOME SIMPLE PLANTS AND ANIMALS 65

Ⅸ．RESPIRATION 80

Ⅹ．FOOD OF ANIMALS 87

Ⅺ．REPRODUCTION IN PLANTS 93

Ⅻ．REPRODUCTION IN ANIMALS 105

ⅩⅢ．MAN 111

ⅩⅣ．NUTRITION IN MAN 117

ⅩⅤ．RESPIRATION IN MAN 126

ⅩⅥ．DISEASES IN PLANTS AND ANIMALS 136

INDEX 149