User:Omid Shirvani/Notebook/Biology 210 at AU

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2016-02-17 Invertebrates and Vertebrates

Excel tableOS.jpg Table 1 from Pg 61

The range of size of the invertebrates viewed is from .25 mm up to 10 or 11 mm. The worm-like organism was the largest (#3). The smallest was the tiny, shelled organism (#1). The Anthropeda and Mollusea seemed to be the most common types of organisms in our Berlese Funnel. The top sample had different creatures than the bottom sample of the Berlese Funnel. Also, the top sample had 4 of the 5 organisms (bottom sample had only 1).


  1. 4 from top of Berlese funnel (sample #3)


  1. 1 from top of Berlese funnel (sample #6)


  1. 5 from top of Berlese funnel (sample #6)


  1. 3 from top of Berlese funnel (sample #4)


  1. 2 from bottom of Berlese funnel (sample #2)


2016-02-03 Microbiology and Identifying Bacteria

Our hay infusion was left open for another week. The water level had dropped a noticeable amount due to evaporation. We smelled the hay infusion and it was better than last week but still was terrible. The water was very dark and cloudy as well as murky. Archaea would not be present in the environment because it is not extreme enough.

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The plates with tet + other than 10^-3 did not have any colonies. This shows that tet + is an effective antibiotic. The plates without tet had an extremetely large amount of colonies. Fungi grew on the tet + treated 10^-3 plate as well as the regular plates.

Figure 1:

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Figure 2:

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Figure 3:

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Figure 4:

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Figure 5:

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2016-01-27 Serial Dillution (Hay Infusion Lab)

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The hay infusion was mixed vigorously. Afterwards, 100 μL was extracted and put into a test tube. The test tube was then labeled 10^-2. 100 μL was taken from the test tube and then put into another test tube marked 10^-4. 100 μL was taken from that test tube and put in another marked 10^-6. 100 μL was taken from that and put in another that was labeled 10^-8. Each of the test tubes then had 100 μL taken out of them and put into a normal agar petri dish. Then 100 μL was taken out for a final time and put into a + Tet petri dish to grow the colonies.


2016-01-26 Examining Biological Life at AU Transect 4

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Abiotic factors

Trashcans Statues Snow Benches Roper Building Artificial Light Bird Feeder Drain Pond Rocks Stone path

Biotic Factors

Trees Birds Human Interaction Bushes Persian Parrotia Flowering Dogwood Squirrels Oak Tree

This transect is considered a certified wildlife habitat. It is home to a multitude of organisms such as squirrels, different types of birds, trees, and various bushes. Some factors that affect what organisms inhabit the area include human intereaction due to the transect being right next to the Roper building as well as the artificial light emitted from the building. The transect has a small, man-made pond in the center covered by a fence. We suspect that it is home to some bugs and other organisms in other seasons. All of the factors, abiotic and biotic offer either shelter, food, and protection.

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Omid Shirvani