Lab 13 Daphnia Lab Report
The purpose of lab number thirteen was to examine the response of the daphnia to a chemical stimulant. Also examined was how human resting heart rates differed from the daphnia’s. Stimulants are any substances that raise the levels of activity in the body. Stimulants could be a number of things such as physical or chemical. Physical stimulus usually deal with something that affects the five senses such as sight, hearing these could be attributed to loud noises or too much light going into your eye. Chemical stimuli differ because chemicals such as caffeine and alcohol usually cause these to affect cognitive abilities and heart rate. These same things can also affect muscle response and glandular response causing twitches and the production