Presented is a short discussion of factors causing color changes in animals. Also described is an activity which may be used to demonstrate the response of amphibian skin to a melanophore stimulating hormone in high school or college biology classes. (PEB)

The use of instant agar-free media in high school biology classes is discussed. The synthetic media are relatively inexpensive, heat stable, dependable, and time-saving. (Author/PEB)

An enzyme exercise to address the problem of students inability to visualize chemical reaction at the molecular level is described. This exercise is designed as a dry lab exercise but can be modified into a classroom activity then can be augmented by a wet lab procedure, thereby providing students with a practical exposure to enzyme function.

Ball State University has developed a diverse offering of courses available by interactive television as one way to increase access to higher education and provide lifelong learning opportunities. Explains how to develop a general studies biology course for interactive television. Topics include course formats, course design, copyright issues, the…