Pill Bugs Hypothesis

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.

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.

The first variable tested was phototaxis, the movement toward or away from light. To do this, we used an empty petri dish and filled the bottom of it with filter paper. We then added five sowbugs to the petri dish and placed a lid on top. After leaving the sowbugs alone for three minutes to get acclimated to their new environment, we placed a lamp directly over the petri dish. Then we laid a piece of cardboard over the petri dish to cover exactly half of it, leaving the other half exposed to the lamp. We want the cardboard to cover close to half of it as possible to make the data as accurate as possible. The lamp was then turned on and the number of sowbugs in the light and dark locations were recorded every minute for the next twelve minutes. As shown in Table 1, we determined that sowbugs are effected negatively by phototaxis.

Based on the data, the number of pill bugs on the dark side is higher at almost every minute compared the number of bugs on the light side. In the beginning, the pill bugs are evenly spread out on both sides. However, as time goes on, the number of pill bugs on the dark side increased rapidly, while the number on the light side decreases. Based on the graph, starting at about three minutes, the number of bugs on the dark side begins to increase significantly. The pill bugs quickly react and choose a best fit environment for themselves. Eventually, at nine minutes there are nine pill bugs on the dark side and only one on the light side. At the end of ten minutes, all ten of the bugs are on the dark side. If the experiment went on for a longer

The structural features of the pill bug allows it to have advantages over other organisms. The pillbugs multi-segmented body allows it to roll into a ball if it feels threatened or in danger in order to protect its self. Another advantage of have a multi-segmented body is it allows the pillbug to semi curl to flip its self back over if it is knocked down. The antennae is used to sense the environment around it, even if it is in ball shape form. The advantages of this is the pillbug will know whether or not it is safe to come out of its ball shape form, if it had been threatened earlier. The antennae also allows the pillbugs to send signals to one another, it is a source of communication between them. The color of the pill

This experiment was performed to observe the taxis and kinesis of certain organisms. This is important because the organism’s survival and ability to reproduce depends on how they orient to stimuli using senses. We investigated the behavior of pill bugs to determine if they’ll move towards or away from the vinegar through smell. If I place pill bugs in a behavior tray with different chambers, then they’ll move away from the chambers that contains vinegar. A behavior tray with 5 chambers is used and 2 were control while the other 2 has cotton balls with a few drops of vinegar on it. 5 pill bugs are positioned in the center of the chambers and is covered with a transparent cover to observe the organisms for 10 minutes. Results had shown the class

A two-part study was recently done to show what natural habitat a Pill bug, Armadillidium vulgare, naturally prefers: wet or dry environments along with a light or dark environment. It was hypothesized that a Pill bug would prefer and wet and dark environment based on its natural habitat of soil. For the wet and dry experiment, a coffee filter and soil were placed in each chamber of a double petri dish with one being dampened before being placed in. For the light and dry experiment a light was hung above one chamber of another double-chambered petri dish while the other chamber was covered with aluminum foil, after placing soil in both chambers. An equal number of Pill bugs was placed in each chamber and a study was taken for

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

Attached is my summary for the Zoëcon Corporation case. Included are four tables which provide supporting data for my recommendations.

In our hypothesis we stated that if we have music on one side, and no music on the other, the pill bugs will all attract to the side with no music. A Styrofoam divider was placed into the shoe box, with 5 pillbugs on each side. One side was playing music, and the other side wasn't. This experiment was timed for 10 minutes, after every minute the pill bugs were counted on the side with music, and on the side without. In our experiment the independent variable was the music, our dependent variable was the pillbugs, and our controlled variable was the amount of pillbugs used. The side with the music averaged

On Tuesday, October 3rd, 2017, several samples of random bean beetles were sorted by gender and size. 6 groups sorted 5 males and 5 females, making for a total of 60 bean beetles. All beetles were measured under a Dissection 3D Microscope to approximate their torso length. After this was accomplished for every beetle in every group, a large data table was compiled to compare sizes. The 10 smallest and 10 largest beetles were each placed in their own respective bean “habitat,” and 10 random beetles from the remaining pool were also placed in their own bean “habitat.” These habitats were nearly identical to avoid unnecessary variability. The goal of the experiment will be to produce significant evidence to either reject the null hypothesis that bean beetle size has no correlation with survivability as a species, or to reject the alternative hypothesis that bean beetle size has some correlation with survivability as a species.

Acidity of an ecosystem, measured in pH, is a crucial factor to the survival of a species in an ecosystem. Altering it can have result in dramatically negative effects, in spite of the fact that pH of an ecosystem has been dramatically changed over a relatively short period of time due to various human activities. For example, acid rain is a major environmental problem that is caused by human-made pollution. When fossil fuels are burnt to get energy, pollutants like sulfur dioxide and nitrogen oxides get mixed into the rainwater and eventually are evaporated into the atmosphere. These gases enter the atmosphere, and mix with water in the water cycle to form an acidic mixture of water and gases. This water falls in the form of acid rain, which

The main reason of choosing the stimulus for the lab group was to conduct an experiment to see in which colored light that pill bugs prefer more out of red and blue. If pill bugs went to red more than blue lights, in which means they like bright light more. The pill bug move slowing in red side of the chamber then moves to blues side of chamber, where it return back to red side of the chamber where it stay immobile .The pill bug adapted to red and blue light which show more significant their locomotive movement.

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.

Bed bugs are back in a big way. In the past 15 years their numbers have exploded. In the past, bed bugs ceased to be a problem in North America but they were still alive and well in other countries. Today, their numbers are on the rise again due to travel and immigration from countries that never managed to get rid of them like we did. The bed bug can now be found in every U.S. state. Unfortunately, once you have bed bugs, you’re going to need help.