Basing our hypothesis off of this past experiment, I hypothesized that in the presence of ammonium nitrate we should see an increased germination rate of our spores from the Ceratopteris richardii. We grew 2 different cultures of the fern spores, one on a control petri dish and one in 1% NH4NO3, with 6 replicates. They were grown for 4 weeks and were put under sufficient lighting. All the data was compiled from all the replicates and after all the calculations we found that there was a significant difference in the spore germination rate. Less germinated in the presence of 1% ammonium nitrate compared to the spores not in the presence of ammonium nitrate.
The preparation remained illuminated in the microscope for approximately five minutes. After this period observations of cyclosis were recorded. Human cheek epithelial cells were harvested from the mouth of the investigator using the blunt end of a wooden toothpick by scraping the inside of the cheek. The harvested cells were then stirred into a drop of isosmotic methylene blue stain on a slide. The preparation was allowed to equilibrate for five minutes.
The sample size was 100 termites and there were 5 replications for each level of treatment. The species being used was termites. The experiment was carried out by first gathering 100 termites into a glass bowl. Two equal sized circles were drawn with each writing utensil on a blank sheet of white paper. Figure 1 shows the circles that were drawn with a red ink pen and red ink sharpie marker.
6. Repeat step 5 four times. Data/Observations: Conclusion: Recall: We did a lab to learn about how the mass of an egg changes when it is put in different substances. Explain: We recorded the masses of two eggs every 15 minutes. One was put in water while the other was put in corn syrup.
The capability statements were limited to 5 pages and were to address the BPA’s statement of work and 10 other specific capabilities. The EPA received capability statements from nine small business FSS contractors, including FSI. Based on her review the contracting officer
Michael Canfield 10/15/09 APES Owl Pellets-A Study of Food Webs The objective of this lab is to observe the type of species found in an owl pellet and how many of that particular species is present. It is also to observe the food web of an owl by examining its pellets. Once we found out information about our specimen, we compared it to the data our whole class obtained. In total, the class examined 25 different pellets, and found 55 animals within the pellets. This means that there were 2.2 animals per pellet.
After observing nuclei, switch back to BF and set up the ocular micrometer to be adjacent to fungal tip to determine fungal growth tip. 8. Using the ocular micrometer, measure and record the distance the tip grows in 5 minute intervals. Do this with 3 different hyphal tips on one slide prep and then switch to another slide. 9.
Repeat steps 1-5 for trial 2. Variables and Control test: Independent Variable: Amount of each reactant poured into the test tubes Dependent Variable: Height of each solution Constant variables: Amount of time waiting for solution Data Table: Test tube # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Trial 1 | 0.5 cm | 1.0 cm | 1.1 cm | 1.5 cm | 1.5 cm | 1.5 cm | 1.3 cm | 1.5 cm | Trial 2 | 0.5 cm | 0.7 cm | 1.0 cm | 1.0 cm | 1.3 cm | 1.7 cm | 1.9 cm | 1.5 cm | Observation/Analysis: Solution turns yellow when a separate product is added, solid of the solution leaks down to the bottom after 20 minutes. Conclusion: The group tried to find the excess or limiting for the reaction between KI and Pb. In the end the hypothesis was supported by the data. We found that little amounts of each product led to a greater height of solids.
Food Report I logged all of my food into a food tracker to get an accurate amount of information to determine if my diet was healthy or not. After about five days worth of data, I have enough data to form a conclusion. I will describe each aspect of the dietary guide lines, target amount and my amount. There are two different aspects of grains that people need on a daily basis. You need both whole grains and refined grains, but combined you need at least six ounces.
After those five experimental days, the mice were given a non- stressed probe trial in which the escape box was removed from the Barners Maze, and the maze was split up into quadrants. The amount of time the mice spent in the home quadrant during the one minute trial was timed. The researcher used three different types of graphs and two different types of tests. He used t-test to compare how much time each mouse spent in the target quadrant zone over one minute in the Barnes Maze, and his results were no significant. The other test was one way ANOVA, the aim of this test was to see the number of times the