Presents, in brief form, the results of a two-year evaluation project funded by the National Science Foundation, at Purdue University. Six minicourses selected from 12 colleges and universities were involved in the evaluation. (PEB)

This article developed from a survey of the five most popular biology texts which promote the theory of invariant homeostasis rather than biological rhythms. The popular fad of "birthdate biorhythms" is discussed in relation to providing education on biological rhythms and its legitimacy to the public. (SA)

The minicourse and school assembly program described in this article include such topics as heart disease, cancer, smoking, and comparative anatomy of circulatory and respiratory systems. (BB)

A ten-day minicourse is described in which seventh graders build, install, and observe a bird house. (BB)

Identifies from the literature some of the diverse roles that second-level biology courses serve within a school curriculum, discussing factors that may explain the current status of these courses. Course types include college preparatory, minicourses, biologic techniques, societal issues, career awareness, and courses for terminal students. (JM)