生物与生物化学系提供研究计划，并获得生物学博士学位。学生成功完成以下要求后，将获得哲学博士学位（PhD）。学生可以通过完成至少54个批准的学分，满意地完成正式的研究生水平课程要求（包括研讨会），至少六个学分的学位论文课程，以及完成并捍卫学位论文委员会可接受的学位论文来满足学位要求。所有学生必须连续全日制报名，直到完成学位要求为止。
Faculty in the Ecology and Evolution Division have a diverse set of research interests ranging from bioinformatics and molecular evolution to behavioral and community ecology. Our faculty have expertise in community ecology, biodiversity, biological invasions, and ecological genetics. Multiple faculty study plant ecology, including belowground communities, as well as plant-microbe and plant-herbivore interactions. Our local field sites are in dunes, forests, coastal wetlands, grasslands, and deserts. We study evolution from the level of genes to complex phenotypes. Areas of expertise include evolutionary genomics, population genetics, evolution of development, sexual selection, and the evolution of social behavior. Our research spans from theoretical to empirical, working with insects, protists, and other organisms.