Biological systems engineering (BSEN) is one of two engineering degree programs offered in the Department of Biological Systems Engineering. Biological systems engineers need to understand biological phenomena and apply engineering principles to solve challenges faced by society. To solve complex problems, a biological systems engineer needs not only to develop expertise in a specific discipline but also be prepared to work across disciplinary boundaries in diverse professional communities. As such, BSEN students develop both depth through engineering coursework in one of three emphasis areas (biomedical engineering, food and bioprocess engineering, or ecological and environmental engineering) and breadth through purposefully selected coursework in the other areas. Biological systems engineers with an emphasis in biomedical engineering might work on systems to micropropagate tissue culture, design devices for monitoring and correcting heart arrhythmias, or develop biological sensors and imaging devices for detecting diseases in humans. Biological systems engineers with an emphasis in food and bioprocess engineering might advance products and manufacturing practices through the design of equipment and processes for producing foods and biofuels. Biological systems engineers with an emphasis in ecological and environmental engineering might restore streams, lakes, and wetlands; design and manage ecosystems; minimize nonpoint source pollution; or design systems for stormwater bioretention or animal waste management.