^ CONTENTS 



Page 

 Tissue formation and organogeny— Postembryonic development— Poten- 

 tial immortality of germ cells. 



CHAPTER LXIV 



Energy Changes in Organisms 



Chemical changes in the body-Organism compared to a fire-Organism 

 compared to an engine-Organism more than a machme-Individuahty- 

 Rhythmicity— Uses of foods— Planes of metabolism— Body heat-Heat 

 regulation— Warm-blooded and cold-blooded animals-Temperature of the 



human body. 



CHAPTER LXV 



ASA 



Functions of Animal Organisms 



Chemical cycles- Water— Digestion and absorption— Circulation— Respira- 

 tion— Secretion— Internal secrttions- Excretion and ehmmation— Motor 

 functions — Nervous activities. 



CHAPTER LXVI 



497 

 Behavior of Animal Organisms 



Memory— Types of animal behavior-Direct response— Simple reflexes— 

 Instincts-Habits-Learning-Intelligence-Reasoning-Combinations of 



modes of behavior— Behavior of lower and of higher animals— Mind and 



consciousness. 



CHAPTER LXVII 



Animal Organisms IN Relation TO Their Environment 505 



Facts of ecology— Relations of animals to plants-Physiological life histories 

 —Habitat— Ecological factors— Reactions of the ammal— Communities— 

 Succession— Rhythms-Marine faunas-Fresh-water animals— Terrestrial 

 faunas— Mimicry and protective resemblance. 



CHAPTER LXVIII 



515 

 Animal Organisms in Health and Disease 



Definitions-Health in a protozoan-Comparison of protozoan and metazoan 

 cells-Conditions of health-Causes of disease-Effect of mdividiiality- 

 Self-regulatory tendency in the body-Toxins and antitoxins-How the 

 body fights disease-Immunity-Anaphylaxis and allergy-Maintenance of 

 health in human beings. 



CHAPTER LXIX 



521 

 Relations between Animal Organisms 



SoUtary life— Associations of animals of the same species-Mating— 

 Families— Colonies— Societies— Associations of animals of different species— 

 Gregariousness-Epizoic associations— Commensalism— Mutualism— hym- 

 biosis — Parasitism — Predatism . 



CHAPTER LXX 



527 



Distribution of Animals 



Present distribution-Past distribution-Place of origin-Dispersal of 

 animals-Factors hindering dispersal-Modification of types-Periodic 

 migration-Altitude-Oceanic distribution-Island faunas-Faunal divi- 

 sions of the earth— North American life zones. 



