Presents an experiment that teaches the evolutionary approach to the study of animal behavior. (ASK)

Provides an exercise to promote students' understanding of the commonality of certain basic questions to all of biology and demonstrate the power of using different approaches with very different assumptions. (Contains 15 references.) (ASK)

Presents two exercises on the study of tropisms. Discusses gravitropism control mechanisms present in plants. (ASK)

Presents four exercises on food fermentation. Discuses the principles and processes behind each fermentation reaction. (ASK)

Explores the problem of dominance as a concept, traces its persistence to the history of mythic images of Mendel, and discusses how we can mend the flaws while providing valuable lessons in the history and nature of science. (SAH)

Briefly describes the problem of graduate teaching assistants having little if any experience in inquiry teaching. Proposes solutions to this problem so it can be avoided in the future. (SAH)

Describes an alternative to teaching ecology by using bacteria to test competitor survival. Students observe a time-dependent selective killing of other unrelated bacteria by Pseudomonas aeruginosa. (SAH)

Describes the use of an oven bag as a sterile chamber for culture initiation and tissue transfer. Plant tissue culture is an ideal tool for introducing students to plants, cloning, and experimental design. Includes materials, methods, discussion, and conclusion sections. (SAH)

Presents exercises in which students can explore Type I and Type II errors using sporangia diameter measurements as a means of differentiating between two species. Examines the influence of sample size and significance level on the outcome of the analysis. (SAH)

Illustrates how antigen-antibody interactions can be applied to the study of evolution. Includes background information, materials, methods, procedures, and results. (SAH)

Describes ways to examine leaf structure and shape using fractal geometry. Students can test hypotheses using the leaves of replicated plants to look for non-linear trends in leaf shape along the stems of plants, across species, and under different environmental growth conditions. (SAH)

Discusses sexual orientation using the analogy of handedness. Points out the presence of diverse sexual behavior and homosexuality among living species and focuses on human behavior. Encourages discussions among biology teachers on the origins of sexual orientation. (Contains 27 references.) (YDS)

Describes the Alabama Science in Motion Program (ASIM) which provides hands-on science laboratories to high school students. Discusses the benefits of the program for host teachers and its impact on students and preservice teachers. (YDS)

Introduces a cytology laboratory course consisting of experimental design, laboratory preparation, laboratory implementation, and scientific write-up. (Contains 11 references.) (YDS)

Discusses inquiry and how asking questions, answering the questions, and arguing the answer should be. Provides examples of inquiry investigations and make recommendations for inquiry-based teaching approaches. (YDS)