User talk:Alexa Coon: Difference between revisions
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This is my attempt to figure this site out...hope it worked. | This is my attempt to figure this site out...hope it worked. | ||
Lab 1 | |||
Biological Life at AU | |||
Purpose | |||
This experiment involved observing a tract of land at American University, a niche, as a jumping point for discussing ecosystems. Each group was expected to take down various biotic, or living, and abiotic, or nonliving, things they found in their swatch of land. This helped to assess the biodiversity present across the campus and which populations were found in which locations. | |||
Materials and Methods | |||
The group in which I worked was assigned a transect near the gym. At the site of the transect we found each of the Popsicle sticks that marked the edges and drew from an overhead perspective what we saw. Each item we observed was labeled. After this we took note of what biotic and abiotic material was present in the space we had mapped. Using a 5mL conical tube we collected 10 to 12 grams of soil as a sample of our transect. This we took back to the lab and added to 500 mLs of deerpark water in a plastic jar as well as 0.1 grams of dried milk. This was all mixed so that the organisms present in the sample could grow so that they could be observed at a later date. The prepared jar was left uncovered at the end of class. | |||
Data and Observations | |||
The area that was assigned to my group was part of a man-made garden which had elements of human impact. So some of abiotic features we found there include a bench, a lightpost, paper, and a sidewalk, as well as more natural things like hay, snow, and dirt. The biotic features included shrubs, trees, leaves, vines, and bushes. | |||
Conclusions and Future Directions | |||
The Hay Infusion that was created at the end of the lab period will wait until the following week to be tested for organisms, but since there are already a good number of living things present in the transect, like trees and bushes, it is safe to say that there will be many more living organisms to discover under a microscopic lens. In the future if this experiment were to be repeated, it would be interesting to have multiple infusions with various amount of milk in them. This would be likely to change how much growth there is in the infusion and is likely to result in much higher rates of bacterial presence. | |||
Revision as of 23:08, 26 January 2015
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Bio 2013 1. Hay Infusion Lab
Sophomore
Biological Life at Au
This is my attempt to figure this site out...hope it worked.
Lab 1 Biological Life at AU
Purpose This experiment involved observing a tract of land at American University, a niche, as a jumping point for discussing ecosystems. Each group was expected to take down various biotic, or living, and abiotic, or nonliving, things they found in their swatch of land. This helped to assess the biodiversity present across the campus and which populations were found in which locations. Materials and Methods The group in which I worked was assigned a transect near the gym. At the site of the transect we found each of the Popsicle sticks that marked the edges and drew from an overhead perspective what we saw. Each item we observed was labeled. After this we took note of what biotic and abiotic material was present in the space we had mapped. Using a 5mL conical tube we collected 10 to 12 grams of soil as a sample of our transect. This we took back to the lab and added to 500 mLs of deerpark water in a plastic jar as well as 0.1 grams of dried milk. This was all mixed so that the organisms present in the sample could grow so that they could be observed at a later date. The prepared jar was left uncovered at the end of class. Data and Observations The area that was assigned to my group was part of a man-made garden which had elements of human impact. So some of abiotic features we found there include a bench, a lightpost, paper, and a sidewalk, as well as more natural things like hay, snow, and dirt. The biotic features included shrubs, trees, leaves, vines, and bushes. Conclusions and Future Directions The Hay Infusion that was created at the end of the lab period will wait until the following week to be tested for organisms, but since there are already a good number of living things present in the transect, like trees and bushes, it is safe to say that there will be many more living organisms to discover under a microscopic lens. In the future if this experiment were to be repeated, it would be interesting to have multiple infusions with various amount of milk in them. This would be likely to change how much growth there is in the infusion and is likely to result in much higher rates of bacterial presence.
