David J. Cotter

• Answers to end-of-chapter review questions for Starr and Taggart's Biology, the unity and diversity of life
• Answers to end-of-chapter review questions for Starr's Biology, concepts and applications
• Instructor's manual for Living in the environment, sixth edition, by G. Tyler Miller, Jr
• Studies on the ecological life history of Portulacca smalii
• Study guide to accompany Biology