Chapter 17 - Populations, not individuals, evolve. Natural selection is a driving force for evolution and genetic variation provides the raw material. The evolution of behavior. Energy flow through the environment. Chapter 28 - We are rapidly approaching the ability of the Earth to support the human population.
Physiological systems maintain a dynamic equilibrium.
Anatomy and function of neurons and the effect of drugs on nerve function 31. Chapter 26 - Organization of the vertebrate nervous system and its role in internal and external monitoring, information processing and initiating responses. Along with the nervous system, hormones help coordinate body functions. Major hormonal systems involved in regulating metabolism, homeostasis and physiological change. Chapter 24 - AIDS and other diseases of the immune system.