1. Chemical Stimuli and the Heart Rate of Daphnia
In trial 1, the Daphnia had a heart rate of 33, trial 2 a heart rate of 30, trial 3, a heart rate of 29, and trial four, a heart rate of 40. ... This trial had an average heart rate of 36.5. ... We were to examine if the heart rate recovered or leveled out to the original heart rate recorded. ... Compared to the normal heart rate, the "unknown 2"" led the heart rate to increase by 3.5, at 36.5. ... The Daphnia's Heart rate did in fact come back down and level out to the original heart rate of 33. ...
- Word Count: 594
- Approx Pages: 2
- Grade Level: High School