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Define hypothesis
A tentative answer to a well-framed question in the form of a statement based on previous data. Must be testable and falsifiable
Describe what effect caffeine and alcohol commonly have on the nervous system
Caffeine increases heart rate whereas alcohol decreases
Identify Daphnia eye, antennae, and heart
Eye: most obvious structure
Antenna: protrude from the head. used for locomotion and to sense the environment
Heart: upper portion of its body behind its digestive tract. It is a clear structure beating rapidly.
Identify IV and DV in the Daphnia experiment
The IV was the ethanol and the DV was the heart rate
Calculate avg heart beats per 15 sec, avg heart beats per min, and 10% change in heart rate.
Avg hb for 15 secs is adding all number and dividing the amount of numbers.
Avg hb per min is multiplying by 4
10% change in heart rate is x by 0.1