The human body is an amazing product of 3.5 billion years of evolution. From our cells to our organ systems, our bodies are beautifully designed to thrive on planet Earth. In this course, we will explore the structure and function of various human organ systems including the circulatory system, respiratory system, digestive system, reproductive system, and portions of the endocrine system (kidneys and adrenal glands). Along the way, we will discuss challenges faced by each of these organ systems in this modern age that can result in disease such as air pollution, endocrine disrupting chemicals, overuse of antibiotics, chronic stress, and a highly-processed industrial diet. Students will perform various hands-on laboratory activities that will reinforce how their bodies function and how they can live a healthy life. Not open to students who are enrolled in or who have taken and passed BIO 303 with at least a grade of C- or P.