The Correlation of Feeding and Planaria Negative Phototaxis Behavior

The Correlation of Feeding and Planaria Negative Phototaxis Behavior top: Planarias evince a negative phototaxis manner where they avoid creation open to distinct elucidation (Inou et al., 2004). This gives the assumption that food would be a more than than coercive attraction in the duskiness than in the illumination. I examination this hypothesis by pickings deuce groups of planarian and eating one group with constant unobjectionable exposure and the other in the dark cover by a box. These cardinal polar environments would rise which one is more attractive measured by the amount of planaria feeding. During severally of the basketball team minute trials conducted there was no important results as to whether light or dark was the more lordly stimuli. The experimentation showed there was no difference in activity. inlet: The use of the experiment is to see whether food is a more positive attraction in the dark or light for planaria. The biological hyp othesis tested is that more planaria bequeath be attracted to food in the dark rather than in the light based on their negative phototaxis bearing which is an avoidance of light. We would come the question by measuring the amount of planaria feeding on chicken liver conducted in five different trials, a duration of five minutes each.

Because reduce planarians atomic number 18 photo-negative during daylight hours, they are unremarkably found in dark, cool, dampish areas at a start out place objects such as rocks, logs, in debris, or infra shrubs, and on the soil surface following heavy rain. relations and feeding oc cur at night (Esser, 1981). This experiment ! ordain help support the notion that planaria negative phototaxis behavior has a correlation with their preferred environment to feed in. Methods: To test my hypothesis I prepared an experiment where I cool off a total of ten planaria to divide them into both separate petri dishes. Planarias are sensitive to organic pollution only if prefer moderate nutrient levels (Sauter, Para. 2) so pond ca-ca was used to keep them in. One dish...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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