User:Christian Ortiz/Notebook/Biological Life at AU (Lab 1)

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January 25, 2015 - Observing a niche at AU


The theory of evolution by natural selection is one of the most important theories in biology. To help grasp this theory it was necessary to observe evolution by examining different niches at AU. By observing the characteristics of a niche we are able to see the diversity in an environment. This ecology would help us understand the interactions between multiple organisms.


Each group was assigned a 20 by 20 meter dimension piece of land. A ground sample was taken from the transect and placed in a sterile 50 mL conical tube. This sample would be used to make a Hay Infusion Culture. To make the Hay Infusion Culture the ground sample was placed inside of a plastic jar that contained 500 mLs of deer water. Before closing the jar and mixing gently, 0.1 grams of dried milk was added to the container. Lastly, the lid was taken off and the open jar was placed in the lab room.


The transect the group received was a piece of land that that interacted with a sitting area. Its location was in the center of the Quad. From East to West, the transect had grass that lead up an area of bushes. This area of bushes was supported by soil under it but the soil also had its own area. The soil would also meet up with the cement bench. The biotic components of this transect were the bushes, soil, and grass. The abiotic components of the transect was the cement bench.File:FullSizeRender.jpeg

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