For up to 40 students (in 10 groups) Time Required: 2.5 hrs, which can be conducted over two lab periods. Students will measure pulse rate under different physiological conditions and will correlate blood pressure and pulse rate to physical fitness. The Q10 of a Daphnia magna will be determined from the relationship between temperature and heart rate. Requirements: Dissecting microscope; thermometers; sphygmomanometer; stethoscopes; timers; petroleum jelly; triangular file. CONTENTS: Coupon for Daphnia magna, Pasteur pipets 9", 10 Transfer pipets large bore, Petri plates, Complete reagent use instructions.