Official course description: Formerly BIO 2020. This course is a continuation of BIO 2010. Topics include mendelian genetics, molecular genetics, regulation of gene expression; the evolution by natural selection, speciation and branching evolution, diversity of organisms and their classification; plant phsiology, reproduction, and classification; the ecology of populations, communities, and ecosystems. Laboratory exercises include both observation, dissection, and experimentation and independent group research. Written laboratory reports and an oral presentation are required. Recitation includes oral reports on assigned readings.