User:Yvette T. Mbah/Notebook/Biology 210 at AU
'01/22/2015'Natural Selection and Observing a Niche at AU
Purpose The purpose of this lab was to study a specific niche at American University (AU) in order to understand the diversity of organisms ans natural selection.Organisms are more likely to be found in conditions favorable to them (natural habitat) than to be found in conditions foreign to them. If an organism prefers the cold, then you are not likely to find it in warm weather and the reverse is true.
Materials and Methods
- Observed a 20 by 20 meter area of transect # 2.
- Described characteristic of transect.
- Observed the different living and non-living life form.
- Collected soil sample from transect 2 and placed it in a 50 ml tube.
- Made a Hay Infusion Culture by placing 10-12 g of soil sample into plastic jar with 500 mls of deer park water.
- 0.1 gm of dried milk was added to jar and mixed for 10 s.
- labeled jar, removed lid and placed in a safe place in the lab.
Data and Observations For transect 2, i saw five biotic dirt, leaves, plants,trees, moss, stone bench, info sign, and snow.
Conclusion and future directions Transect 2 located by Hughes and McDowell Hall across from shuttle bus stop. i noticed that students were often cutting through the transect which could account for why there were not many organisms found there. In the future, i will collect soil samples from many different places. My hypothesis was supported because we mostly found only paramicium and not many other organisms.
YTM
01/21/2015
I hope OpenWetWare.org will get easier to navigate as the semester continues.
YTM
