The dependent variable is pulsation rates of L. variegatus before and after they were in the treatments. The standardized variable of this experiment would be the temperature of the surroundings of the L. variegatus, the three pulsation rates taken for each worm before and after the treatments, and also the amount of time each worm was kept in their respective treatments. The level of treatment for this experiment would be ten because of the six different concentration treatments of caffeine and nicotine along with the four household drugs. The sample size of the experiment differed from some treatments to other. For the three different concentrations of caffeine and nicotine, the sample size was 18 black worms each. The sample size of the control treatment of week 1 was 6 black worms. 12 black worms were used for the control of week 2, decaffeinated coffee and instant coffee. 11 black worms were used for the tea treatment and 15 were used for the tobacco treatment. There were three replications of the pulsation rate readings per worm before and after the treatment. With all this information we were able to get the results we got.
One sowbug was then placed in the 3cm gap of the container and 30 seconds was started on the stopwatch. When time was completed we observed which side, grass or sand, the sowbug had preferred. Then, the sowbug was removed and a new one was placed in the container. The same steps were taken for each of the 20 bugs.
The table below shows all the results from the experiment and even some extra information. The table displays the mean of the times the termites stayed on the pencil and papermate circles. It also displays the amount of trials used in the experiment.
Wet and Dry Environments To find whether Pill bugs gravitate toward a wet or a dry experiment, two coffee filters were cut to the size of the petri dish and placed inside, however one was dampened before being placed on the bottom. Dirt was then added on top to promote a more realistic environment and five Pill bugs were placed in each side before starting to prevent bias on an environment. A log was taken every thirty (30) seconds for ten (10) minutes on how many bugs were in each chamber and a graph was then made to show the changes of the bugs' positions over time. Again, if a Pill bug was in the transgression tunnel he was determined to be in a dish by the direction he was moving or the way it's head was facing.
Keeping the experiment isolated on the focus of body size is as simple as not changing any other variables concerning the experiment. Therefore, predator number, predator size, habitat type, and any other possible variable in the experiment that is not body size will be kept as consistent and identical throughout the groups and replicable tests as
The lab handout provided by the instructor was used as a guideline to conduct this experiment. The only difference was the organism used and data collection period. For this experiment, pill bugs and crickets were utilized. Also, data was collected for a period of 12 minutes.
Next the beetle was weighed and it’s weight was recorded. The dental floss was then tied around the second and third legs, and taped to the petri dish. A strip of cloth was also needed to provide traction for the beetle. Then, the petri dish was removed from the beetle and the weight of the petri dish was recorded. The experiment was then ready to be performed. Paperclips were added to the dish every 5-10 seconds until the beetle could pull it no more. Then, the petri dish was removed from the beetle and the weight of was recorded. This experiment’s dependent variable was the amount of mass the beetle can pull, and the independent variable was the mass of the beetle. There was no control group in this experiment. These were the materials and methods used to conduct this
Every 30 seconds their preferred position was documented. Once the three minutes were up and all the information was documented then the ten pill bugs were gently collected and put back in to their jars. These pill bugs were then traded with another tables pill bugs. The new pill bugs came from a sucrose and water chamber habitat. Again ten of these pill bugs were gently grabbed and placed in the chamber for 3 minutes with every 30 seconds documenting where the pill bugs preferred. After the 3 minutes the pill bugs were grabbed placed back in to their jars and switched again with a different table. The last trial of pill bugs came from a tea and water habitat. The ten pill bugs were gently grabbed and placed in to the chamber for three minutes. Every 30 seconds their preferred habitat was documented. When the 3 minutes were up the pill bugs were gently grabbed and placed back in to their jar. In this experiment the control was the distilled water, the dependent variable was the number of bugs in the habitat preferred, and the independent variable was the alcohol, and the water
The containers were plastic and 18 by 15 by 6 centimeters long. Prior to the experiment being performed, the crickets had spent a week in these residencies. Along with the crickets in the plastic containers, there was wet pieces of paper towel and a slice of carrot.
The goal of this experiment was to determine the empirical formula for a hydrate of magnesium sulfate and water. The technique that was used was measure the mass of the hydrate and then apply heat to evaporate the water. Then determine the mass of water that was in the hydrate and the mass of the remaining magnesium sulfate. The equation for the hydrate is determined by calculating the mole to mole ratio of the water and the anhydrous. The resulting formula will be formated as: MgSO4*_H2O
We set up 3 fermentation set-ups, labeling them 1, 2, and 3. Then, filled a tub with hot water and inserted the end of the plastic tubing into one of the test tubes and submerged the collection tube and plastic tubing in the tub. After that, we mixed the fermentation solutions for the other tubes, (tube 1 got 4mL of water and 3mL of corn syrup, tube 2 got 3 mL of water, 1 mL of yeast and 3 mL corn syrup, tube 3 got 1 mL water, 3 mL yeast and 3 mL of corn syrup) . We then mixed each test tube and put the rubber stoppers in the fermentation tubes. Finally, we marked the water level on each collection tube with a wax pencil to use as the baseline. Then at 5 minute intervals we measured the distance from the baseline for 20 minutes.
Interpretation: By this data, we can see that the Giraffe water is more turbid than the Amazon Lake Water, and probably because the water had a good amount of organic matter, like the Giraffes excrement or it can contain urine too. The Amazon Lake Water is regular in Turbidity, probably because of the amount of organisms live in it and how they interact with it. Even because of the color of the lake, it can determine that it is kind of turbid. But the levels of dissolved oxygen on the lake is greater than the giraffe water, since the lake has a population of organisms and it probably has plankton and algae and since the organisms use the oxygen in it.