User:Nina Bocchini/Notebook/Biology 210 at AU: Difference between revisions
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'''January 26, 2014''' – NB | |||
Lab 1 : Biological Life at AU | |||
The purpose of this lab was to understand natural selection and understand biotic and abiotic characteristics of a niche. We are looking at three different algae families in order to understand natural selection. The families we looked at were Chlamydomonas, Gonium, and Volvox. We first observed the isogamous, unicellar, motile alga that is found in damp soil, lakes, and ditches and it is called Chlamydomas. Then we looked and the Gonium, which is more complex species that consists of colony of multiple cells. Lastly we looked at the Volvox and it has thousands of spiked cells. This represented the peak of evolutionary complexity in the volvocine line. | |||
We looked at our transect and determined what type of ecological system it might be and to see interactions that are typical of the community inhabiting different niches in an ecosystem. The transect my group was given was in the middle of the quad, on the outskirts of the stone circle. It was mostly manicured grass but there were some bushes and part of a man made stone sign in it. The abiotic components of the transect were bushes, grass, leafs, branches, and flower bushes. The biotic components of the transect were dirt, snow, and the stone sign. | |||
Once my group had drawn the transect and determined what was biotic and abiotic, we took a soil sample that would be used to represent the transect. Then we went back to the lab and made a Hay Infusion Culture. We did this in order to observe protest and to inoculate agar petri plates for studying bacteria at a later date. | |||
[[Image:IMG_2528]] | |||
After observing the transect we determined that the area was a manicured landscape. It is completely groomed and taken care of by man. So the organisms in the transect had to adapt to the ecosystem that is altered by man in order to survive. | |||
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Revision as of 11:52, 26 January 2015
January 26, 2014 – NB
Lab 1 : Biological Life at AU
The purpose of this lab was to understand natural selection and understand biotic and abiotic characteristics of a niche. We are looking at three different algae families in order to understand natural selection. The families we looked at were Chlamydomonas, Gonium, and Volvox. We first observed the isogamous, unicellar, motile alga that is found in damp soil, lakes, and ditches and it is called Chlamydomas. Then we looked and the Gonium, which is more complex species that consists of colony of multiple cells. Lastly we looked at the Volvox and it has thousands of spiked cells. This represented the peak of evolutionary complexity in the volvocine line.
We looked at our transect and determined what type of ecological system it might be and to see interactions that are typical of the community inhabiting different niches in an ecosystem. The transect my group was given was in the middle of the quad, on the outskirts of the stone circle. It was mostly manicured grass but there were some bushes and part of a man made stone sign in it. The abiotic components of the transect were bushes, grass, leafs, branches, and flower bushes. The biotic components of the transect were dirt, snow, and the stone sign. Once my group had drawn the transect and determined what was biotic and abiotic, we took a soil sample that would be used to represent the transect. Then we went back to the lab and made a Hay Infusion Culture. We did this in order to observe protest and to inoculate agar petri plates for studying bacteria at a later date.
After observing the transect we determined that the area was a manicured landscape. It is completely groomed and taken care of by man. So the organisms in the transect had to adapt to the ecosystem that is altered by man in order to survive.
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