1. Daphnia
... , consume them this energy is passed on (BioMedia, 2003). Daphnia are also ectothermic, or cold-blooded. They do not draw heat from their own metabolism, which is called homeothermic. Instead they must get it from an outside source. They regulate their body temperature by soaking up heat from the ... will decrease the heart rate of the Daphnia Adding epinephrine to the water will increase the heart rate of the Daphnia. III. Materials and Methods Using a microscope the heart rate of a Daphnia is measured. Three different sets are taken, each in fifteen-second intervals, for room temperatu...
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- Approx Pages: 5
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- Grade Level: High School