CONTENTS 



CHAPTER I 

 Introduction 



PAGE 



Biology Defined 3 



Aim of General Biology 5 



The Living Substance, Protoplasm 5 



Green Plants' Role 5 



The Maintenance of Life in Animals and Non-Green Plant 



Cells 6 



Adjustment of Organisms to Their Environment 6 



The Interaction of Organisms • 7 



Death 7 



The Decomposition of Organic Remains 7 



The Reproduction of Plants and Animals 8 



Heredity 8 



Evolution 9 



The Distribution of Animals and Plants 9 



Man's Place in Nature 10 



PART I 



Section 1. The Living Substance 

 CHAPTER II 



Protoplasm and the Cell 



Universality of Protoplasm 13 



Protoplasm Always Organized into Cells 13 



The Discovery of Cells 13 



The Discovery of Protoplasm 14 



Physical Characteristics of Protoplasm 15 



The Chemistry of Protoplasm 16 



The Physiological Characteristics of Protoplasm 17 



Growth, Waste, and Repair , 17 



The Power to Liberate Energy from Food 17 



The Power of Causing Chemical Change 18 



Sensitiveness to Stimuli 18 



Stimulation, Conduction, and Response 19 



Cell Division and Reproduction 19 



The Structure of a Typical Cell 20 



Summary 23 



