The experiment was conducted in five trials. The pillbugs attraction to the substance was measured by the amount of time within one minute the pillbug was in the substance. Inside the crate the sand was placed on the left side followed by a cardboard divider and the cornstarch was placed on the right side followed by a divider, leaving a neutral spot in the middle where the pillbug was placed for one minute after each trial.…
d. My experimental design was very simple and realistic where in which I intended to get the best results out of it. It’s a paper towel placed inside of a Tupperware. We then put water on half of the paper towel and put worms at the middle of the box and observed which side it preferred to go to.…
Figure 1 shows the average amount of absorbance for each tube, containing different levels of pH. Tube 2 had an acidic pH level, Tube 3 had a neutral pH level, and Tube 4 had a basic pH level. It is indicated that the absorbance rates were the highest for the neutral pH level, with a final absorbance rate of 0.166. This was followed by a basic pH (0.106). The acidic pH level had the least amount of absorbance with a final absorbance rate of 0.069. This reinforces the idea that the ALP enzyme worked best under conditions with a neutral pH and worked the least in an acidic pH environment.…
We will be using the LoggerPro and LabPro in order to help us determine our data. The purpose of this experiment is to follow the changes of pH during the titration of an acid and a base in order to determine the of the weak acid, . is a constant for a given acid at a given temperature. In this experiment we determined the Ka using two different methods: 1) the measurement of the pH of a solution containing a known concentration of a weak acid, and 2) measurement of the pH at the half-neutralization point in the titration of a weak acid and a strong base.…
For future references what we could do to improve out methods of conducting this experiment is after each trial we should clean the choice tube to make sure there is no residue, which can cause miscalculations. Though the whole experiment we used different sizes of isopods. Maybe next time we can stick to one size throughout the whole experiment or we could do these trials by size. Preform the same trial a few times using different of pill bugs and see if the size of the pill bugs has anything to do with their…
In this lab we watched the particular conduct of physical isopods, ordinarily known as the pill…
| LabRepQuiz010 Question MC #7: Which of the following is the best written sentence that includes the information below taken from an article written by Dr. Costanza, but avoids plagiarism?…
4-6: Why did lung function in the deflated (left) lung return to normal after you clicked Reset?…
The results from our experiment does support our hypothesis. When comparing and viewing the data of the amount of pullets that were recording, pill bugs preferred rotten fruit to rotten meat. The accuracy of our data was based upon the amount of times the treatment was repeated and the amount of Pill bugs that died. Pill bugs cannot live in a cold environment because they will freeze. Due to the irregular climate in the North country, that would be a factor that could not have been controlled and would be one of the variables that caused the pill bugs to die. If this experiment was replicated, a controlled climate and a longer testing period would help produce more stable results.…
This lab felt very “slow” because there was not a lot of action going on. The pill bugs would either walk around in circles or stay put. However, it was both fun and annoying when my group tried to put the pill bugs in the chamber and take them out. We had to put a lot of effort to get the pill bugs on to the paint brushes because they would scurry around and it would take a while to find them. Also, it was cool to see the pill bugs use their defense mechanism (it only happened once) by going into a hard circular shape when being prodded at by a paintbrush. This lab had a lot of experimental areas. The amount of water or basic or acidic solution to the paper may have affected results. For the first part of the lab, outside factors could have…
A. Create a solubility curve for NH4Cl by plotting g NH4Cl/100 mL H20 on the y-axis, and crystallization temperature on the x-axis. Make sure to label each axis. On the same graph as the solubility curve for NH4Cl, add the solubility curve for NaCl using the data provided in Data Table 3.…
Research a pill bug behavior. What type of environment do they prefer? Are the nocturnal or diurnal? What do they eat? Where would you go to find roly-polies?…
The pill bugs used in this experiment were all acquired from the same source, a habitat consisting of soil, paper towels for shelter and water. The experiment will require the use of two, five chamber arenas as well as two, two chamber arenas. It will also require a pill bug sample of at least twenty specimens, and a supply of filter paper to use as the moist and dry bedding for the pill bugs in the arenas.…
5. Kill the remaining female flies by placing them in alcohol. These are assumed to be non-virgins, which are needless in this experiment.…
Thin Layer Chromatography or TLC is a technique used as a separation and identification technique. There are many forms of chromatography, but one thing that remains constant throughout all of the types of chromatography is that there is a stationary phase and a mobile phase. In the case of TLC the stationary phase is the silica gel on the TLC tray.…