Planarian Temperature Lab Report

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Introduction This experiment was conducted to measure the change in the Planarian’s speed according to different light frequencies. This experiment is relevant to a Planarian’s natural life as Planaria live in many different environments, and under several light variations. Planaria are found in both salt and fresh water, as well as amidst logs, soil, and a variety of plants (Conservation Commission of Missouri, 2015). This immense variety of environments corresponds with a variety of light sources, colors, frequencies and intensities. The relation of this experiment to the Planarian’s living conditions correlates to the hypothesis tested in this experiment. If light has a higher frequency it is predicted the Planarian will travel the distance of the field diameter quicker, and on the reverse, when a light with a lower frequency is present the Planarian’s movement will be slower. The frequency of …show more content…
Two separate spreadsheets were created to interpret the two different trials for the two different Planaria tested. After, the values were translated into graphs in order to get visual perspective on the results. As observed the trials the Planarian was the slowest under the natural light of the microscope (control), was a bit faster under the violent light which had the highest frequency, a bit faster under the green light with the intermediate frequency, and the fastest under the red light which had the lowest frequency. These results can be observed in attached figures 1 and 2, respectively serving as trial 1 and 2 with the two different Planaria specimens. The data was then converted into averages through use of the ANOVA spreadsheet. This resulted in the control (3.92, 4.37), violet (3.74, 3.95), green (3.73, 3.76), and red (2.83, 3.69) measured in seconds across the 4.5 mm field diameter. The two sets of numbers represent trial 1 and then trial 2. These averages can be observed in attached figure

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