For students intending to take advanced courses in the biological sciences or enroll in preprofessional programs. Metabolism and energetics, structure and function of biomolecules, cell structure and function, animal development. Second course in a three-quarter series (BIOL 180, BIOL 200, BIOL 220). Prerequisite: minimum grade of 1.7 in either BIOL 180, B BIO 180, T BIOL 120, or TESC 120; either CHEM 143, CHEM 145, CHEM 223, CHEM 237, or OCEAN 295, or concurrently taking either CHEM 220, CHEM 152, CHEM 153, or CHEM 155. Offered: AWSpS.