4 credit hoursPrerequisite: C or better in BIOL 2010/BIOL 2011. Corequisite: BIOL 2021. Meets requirements for many pre-health professional programs including nursing. Structure and function of endocrine, circulatory, respiratory, urinary, digestive, and reproductive systems. Biology majors passing both BIOL 2010/BIOL 2111 and BIOL 2020/BIOL 2021 with a C or better may substitute both courses for BIOL 3020. However, the substitution is not recommended for pre-med students and does not count for upper-division hours. Three hours lecture and one three-hour laboratory.