Summarizes information regarding the importance of water to biological systems, the total ecosystem and its interdependent parts. (CS)

Describes early scientific research involving marine invertebrate pathologic processes that may have led to new insights into human disease. Discussed are inquiries of Metchnikoff, Loeb, and Cantacuzene (immunolgic responses in sea stars, horseshoe crabs, and marine worms, respectively). Describes current research stemming from these early…

Describes construction of a model ecosystem using a 10-gallon aquarium with a sand, water and air interface. Pesticides are placed on sorghum plants grown on the terrestrial portion. After 30 days, movement of the pesticide is traced using radioisotope techniques, from terrestrial to aquatic organisms. Details for calculating concentration factors…

Describes major desert aquatic habitats, including descriptions of environmental conditions characteristic of these areas and the adaptations of desert aquatic organisms to them. (CS)

Summarizes information about salt marshes, including descriptions of their development and structure, details of their values in terms of commercial fishing, stabilization of coastal zones, "reclamation" for grazing and cropfields, recreation and aesthetics. (CS)

Details life cycles and descriptions of the major aquatic insects. Instructions for collection and maintenance of live organisms are included. (CS)

Techniques for effective photography of aquatic organisms in the field and laboratory are described. Photography of microscopic organisms and construction techniques of photoaquaria are described. (CS)

Presents generalizations regarding how running water systems change physically, chemically and biologically with stream order, i. e., from the tiny headwater streams (order 1) to those receiving first order headwater tributaries (order 2) and so on. Food chain diagrams respective of stream order are explained. Stream study projects are suggested.…

An overview of the various aspects of water quality, including a rationale for multidisciplinary cooperation in water quality management, a list of beneficial water uses, a discussion of the major types of water pollutants, and an explanation of the use of aquatic biota in testing for water quality. (CS)

Included in this introduction to the study of algae are drawings of commonly encountered freshwater algae, a summary of the importance of algae, descriptions of the seven major groups of algae, and techniques for collection and study of algae. (CS)

Discusses methods of recognizing teleology, anthropomorphism, tautologies and other improper reasonings (post hoc fallacies, arguments from authority, arguments regarding impossibility, and name-calling), and semantic distinctions between scientific proof, hypotheses, laws, and theories. Relates these to the development of the scientifically…

Discusses contemporary challenges for biologists, environmentalists, technologists, teachers, and political supporters of science and education in solving global problems. Discussed are nation- and worldwide accumulation of toxic materials (DDT, PCB's, kepone, radioactivity, dieldrin, mirex), transformation of natural ecosystems, and instability…

Suspensions of 20 different cultures were grown on appropriate media, then pipetted into sterile anhydrous silica gel. Silica gel cultures after incubation and refrigerated storage were tested for viability. Results showed little mutation, low replication, low contamination, minimal expenses, and survival up to two years. (CS)

Describes activities in nutrition education, such as data analysis of lists of quantities and kinds of food eaten by students, listing of television commercials and frequencies of food advertised, school-wide surveys, requests to vending machine companies for more nutritional selections, and organization of a Food Day assembly. (CS)

Describes the "science forum" as a means of initiating discussion between students in different schools in a cooperative educational experience. Students from advanced biology classes in two high schools presented research papers and panel discussion followed. Involved persons included all levels of the educational community--administrators, PTA…