Official course description: Cardiovascular, respiratory, digestive, excretory, endocrine and reproductive systems. Not open to those who have successfully completed BIOL 214. Students who successfully completed BIOL 325 may not take this course without departmental approval. To receive Biology major credit, BIOL 221/ BIOL 221L [BIOL 213] must also be completed. Corequisite: BIOL 222L (lab). Prerequisite:BIOL 221/ BIOL 221L [ BIOL 213].