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I will be working in a freshwater environment measuring certain variables in order to investigate my hypothesis, which is as follows - My hypothesis is that there will be wider species diversity with increasing oxygen saturation.  

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My Plan I will be working in a freshwater environment measuring certain variables in order to investigate my hypothesis, which is as follows: Hypothesis: My hypothesis is that there will be wider species diversity with increasing oxygen saturation. Mayfly nymphs Ephemeroptera: Biological Indicators Mayflies are insects that spend most of their lives as nymphs in streams, emerging briefly as adults ("ephemerally") to mate and lay eggs. Gills are often visible along the abdomen. If an animal has three hairy tails it's a mayfly; but some mayflies have two tails. Mayfly nymphs are strong swimmers and move like dolphins. As nymphs many mayflies feed on freshwater algae; as adults they do not eat, because they live only a few hours or days. Mayfly diversity declines as streams are degraded. Mayflies are particularly sensitive to waste from mines. Are rarely found in areas of high pollution due to them being high oxygen demanders. Also not...

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