How Daphnia Respond to Caffeine

Hypothesis I think that the amount of caffeine in the blood bequeath determine the heart measure of the cyclops. It will be directly proportional to each other i.e. the ontogeny of the % of caffeine will likewise increase the heart rate of the daphnia. Safety 1. Make sure you concentrate the solution so that the daphnia does not get too much of it and die. 2. prosecute care with the glassware make sure that they do not break. 3. The microscopes are fragile and the light bulbs can get bouncy so be careful of that. Evaluation When olfactory propertying at the results that I sport obtained I can see that when adding to a greater extent than caffeine concentration to the water flea, the heart will also increase and there fore the prediction that it will be directly proportional is correct. For example when the control had only a heart beat of only 160BPM the daphnia with 0.1% concentration of caffeine had a heartbeat of 296. this is almost 1.8 times more heartbeats than a regular one. When doing this experiment in particular we have to look at some issues that are ethical and by this I mean when testing fleas for the call of science. I had decided that it was ok that we use these daphnia for the sake of science as it may help us in the future.

Another way of flavour at this is to say that if everyone was to do this experiment with daphnia wherefore the amount of daphnia left will be olive-sized and this will then cause a major col in the food chain and may soon have some deadly effects. When finished with the daphnia we could out them underpin in their natural habitat and then everything will be alright. The ethical issues will be mainly brought up when we use a higher concentration that will kill the daphnia this is why we have to make the solution dilute first. In every experiment, only the reli equal to(p) and accurate results are useful. The more of these we do and taking an average we will be able to get a fairly good result and because we used the... If you want to get a full essay, order it on our website: Ordercustompaper.com

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