Isopod Lab Report

Conclusion: In our experiment, we were able to observe the isopods behavior. According to our hypothesis, it stated that if we divide the isopods equally in light and dark, carefully administered, the isopods will gravitate towards the darker side. The dependent variables were the isopods and their behavior whereas the independent variables were time, temperature and light. We conducted our experiment by collecting a total of 16 isopods in total and equally distributing them into two chambers that we had constructed. The chambers were made out of two water cups and one cardboard paper in the middle to make a bridge to allow isopods to move into the other side. The group used paper towels to make sure the bugs couldn't burrow beneath. In total we had 3 trials put

The experiments conducted for this lab report focused on water contamination and filtration. Experiment 1 was effects of groundwater contamination. Oil, vinegar, and laundry detergent were added to clean water with no means of filtration. The clean water was found to be contaminated. A filtration system consisting of cheesecloth and 60 ml of soil was created and the contaminated samples were filtered through it. The soil and cheese cloth did not affectively filter the contaminants. Experiment 2 focused on

October 17, 18, and 19, samples were collected from multiple sites along the BSR. The class was split into groups, and samples were collected from seven separate locations along the river and WWTP. There was also a sample collected by the S which is located between sites four and five. For each of these sites, there were ten groups from other labs that also collected a sample from the BSR. At site two of the river, the location included multiple sources of possible contamination. A drainage site was located 200 yards upstream, along with a small PVC drainage pipe next to the collection site. Not only was there drainage running into the river, the site was under a bridge, and contained other trash scattered throughout the area. The

There are many patterns that can be observed throughout our environment. In this experiment, the temperatures of organisms in a biophysical environment were analyzed to see if a pattern could be recognized that was related to the behavior of an ectotherm. An ectotherm is an organism that relies on the environment to regulate its body temperature. Organisms such as Pseudemys (turtles) and Lacertilia (lizards) are examples or ectotherms. After arriving at Maxcy Gregg Park and analyzing the temperatures of four microhabitats within two habitats with infrared thermometers, the temperatures were compared between the microhabitats. Then, one habitat was chosen to analyze the temperatures between

The purpose of our experiment was to observe the behavior of the pill bugs. We were trying to find exactly whether the pill bugs would be attracted or repelled by the chemicals. The chemicals used were vinegar, water, salt solution and a sugar

Isopods need water for them to stay alive. Other animals that they can be put in a category with are: crabs, lobsters, shrimp, crayfish, etc., they all use their gills to breathe. They were given the name “pill bug” because they are able to roll up in a tight ball when they feel threatened and it makes them look like a pill. They can be found in many places, these places are under rocks, logs, leaves, and moist areas. In this project he or she will be experimenting the type of environment an isopod likes more. The study of an animal’s behavior is called Ethology. An animal’s behavior is how they act when they are either alone or with other animals. When an animal reacts to an external stimulus is called Taxis. An animal can either move away or towards the thing that caused them to react. In this lab animal behavior will be experimented and observed, by isolating them in a controlled

Rubisco is the most abundant protein on earth that is essential for carbon fixation in plants. For the protein to function at its optimal level, it needs to be isolated from the mixture of proteins and in its purest form. The three isolation techniques carried out in this lab are salting out, ion exchange chromatography, and SDS-PAGE. Rubisco will be purer as each technique is conducted and will be in its purest form after the last isolation technique is carried out.

Begining by labeling 7 different 2.0 ml tubes 0 thru 6 for each compound. Then add 1ml of extract to tube 0. Then add 0.5 ml of DMSO to tubes 1 thru 6. Now make a 1:2 serial dilution from 0(pure extract) to 6(1:16)

Since the P-value (0.386) is greater than the significance level (0.05), we fail to reject the null hypothesis. The p-value implies the probability of rejecting a true null hypothesis.

The overall goal of the experiment was to determine what caused allele frequencies to change in D. melanogaster over the course of several generations. Was it a result of a biological factor such as genetic drift or natural selection or did the changes result because of chance? To answer this question we must compare the data to the null hypothesis. The null hypothesis was there is not a difference in the data that would be expected to happen by chance. Therefore, there are no forces causing changes in allele frequencies. For the small population, we fail to reject the null hypothesis and cannot support a significant difference between the allele frequencies. With the null hypothesis being rejected, there is speculation that the changes were caused by chance or a variety of different biological terms. As a result, a variety of different hypothesis could be formulated. Was the population size to small so natural selection or genetic drift did not have a chance to work because the genetic variation was limited? Did the genetic variation result completely out of chance, resulting in not having a correlation at all to genetic drift or natural selection? This allows scientists to form new experiments that could lead to a better understanding of the small population. An example would be to continue this similar experiment but to increase the size of the small population from a total of 8 flies to a total of 60 flies. This would allow the population to actually show if genetic

Results: After recording the data, we found a total of 10 different types of microorganisms in Winthrop wetlands (figure 1). In the lake, we found a total of 13 different types of microorganisms (figure 1). Since we found more organisms in the lake, we did a chi-squared test to see if the difference was statistically significant. The value we got after our calculation was 0.53 which is not statistically

2. (5 pts) List and explain the names and affiliations of the various characters/stakeholders in this story – I’m looking for us to use the story to map out the complexities that are generally associated with solving public health puzzles – the stakeholders you list and explain here should apply to many of the cases we consider going forward.

The mean voltage of the battery terminals while connected to the identification resistors is presented in Figure ‎4 12. These samples have been pulled out from the voltage sensor of the PEB panel. The voltage decreased as expected from 12.53 to 12.5 during first 20 seconds of connection to the

Table~\ref{tab:example1} shows the coefficient for Batting Average which is 5.4, this mean that 1 unit of increase in batting average produce a 5.4 increase in balco scandal variable. If our measure of batting average is equal to zero, we would expect the efect of steroides (balco scandal) decrease in a 1.5\%. The t value calculated is greater than the critical value of t thus we can reject the null hypothesis in this case. The p value shows a statistical significance at 95\% of confident.

Experiment #6 allows parents to see how much their child is interested in toys or objects. Counting how many seconds the infant stares at them can help reveal what is inside his mind. In this experiment, parents observe the length of time the infant pays attention to a given toy before he looks away from the object. The baby is introduced to certain toys several times until the baby loses interest, or habituates, to them. This simple experiment can tell parents how an infant’s brain works and how this may affect his learning skills in the future.