Biology Lab Report on the Effects of Adrenalin on a Daphnia

Abstract For this experiment we tested the effects of different adrenalin concentrations (0.001%; 0.01%; 0.1%) on the daphnia flea. The daphnia was placed on a slide with cover slip in order to examine its heartbeat by using the microscope. Aim In this Lab we will study the effect of different concentrations of adrenalin on the heart rate daphnia, the water flea. It is expected to recognize a threshold of the daphnia in its reaction the three different adrenalin …

…no problems and misunderstandings of the procedures. The only suggestion one could make for this and future lab is to always remind the students to shakeup their chemicals before using them. This is because most chemicals settle at the bottom of the containers, after having stood for a while. By shakingup the container again, the chemicals will spread evenly in the solution their in and will therefore also give you relevant results for your Lab.