Presents a list of articles published from January to December, 1974, on genetics, cells, nutrition, respiration, excretion, general physiology, conservation, ecology, reproduction, locomotion, disease, growth, response, behavior, and classification. (GS)

Discusses between-species variation in adaptation of the photosynthetic mechanism to cope with wide fluctuations of environmental water regime. Describes models for water conservation in plants and the role of photorespiration in the evolution of the different pathways. (CW)

Discusses topics to aid in understanding animal behavior, including the value of the biological approach to psychology, functional systems, optimality and fitness, universality of environmental effects on behavior, and evolution of social behavior. (DS)

Discusses the nature and consequences of organisms' adaptation to new environments, including examples of adaptation and tolerance, aliens, adventives and invaders, vacant niches, arrival and fate of an adventure, hybridization with native organisms, and invasion without introduction by humans. (DS)