Essay about Pill Bug Lab

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 hypothesis that was tested was pill bugs are use to the cooler temperature of the room and natural soil would travel a greater distance once they were in a hotter environment. The hypothesis is rejected on the basis that the p-value of .760 is greater than .05. Furthermore, figure 3 supports this rejection, since the averages are very close to each other and their error bars completely overlap. This rejection means that once the pill bugs where in the hotter environment there was not difference in their behavior compared to the cooler room temperature environment; they did not travel longer distances. However looking at bugs D, F G and H in figure 2, there is a difference in distance traveled that appears to be greater than

When tin foil was wrapped around one side there was some extra tin foil at the bottom that made the chamber not be leveled and one side was higher than the other. We tried our best to cover the chamber entirely, but the tin foil had tiny rips in it so light could easily come in from certain parts, which would have warded off some pill bugs. The tin foil was also gray, instead of black which would have done a better job at creating total darkness. In order to fix this error, one side of the chamber should be covered with a thick black cloth. The cloth should be able to cover the sides so no light can peak through and it will not rip easily either. Another error was that the lab table the chamber was placed on is black, so it creates some darkening effect on on the light side that could have attracted some pill bugs. A way to fix this problem would be to place a white piece of paper on the light side. This way the effect of a totally light environment can be tested and it will let the side underneath the dark area remain

I would describe the pillbugs’ response to moisture as taxis instead of kinetic. When an organism has a taxis response it either moves towards or away from a stimulus.

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

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.

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.

3. Click the play button on the video controller in the lab simulation to watch an introductory video about mealworms.

2. Place 10 randomly selected sowbugs in each of the 3 empty tin bowls for 3 minutes to allow them to acclimate to the environment.

9. If your biochemical test requires that a reagent is added, which tool do you need to use? (1 pt)

Throughout this experiment a number of random and procedural errors were apparent; these errors could have affected the results of the experiment in a number of ways. One experimental error that occurred during the experiment was that some flies became stuck in the food source and died. The main cause of this was the fact that the fly vials were stood up (vertically) before the flies had fully recovered from the anaesthetic. This could be overcome in future experiments by ensuring that the vials are kept horizontal until all of the flies fully recover from the anaesthetic.

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.

4.Measure 35mL of warm water and add them into each of the 4 test tubes at about roughly the same time. It is essential that the water is warm. Do not seal the test tube.

Many people think that Ladybugs are bugs but they are actually beetles. Ladybugs commonly yellow, red, or orange with black spots on their body. There are about 4,300 kinds of ladybugs in the world. The ladybug is found all over the world and there is said to be more than 450 species in North America. The name “Ladybug” comes from Britain`where they became known as “Our Lady’s bird” or also “The Lady beetle”. The average lifespan for the ladybug in the wild is two to three years. Their spots and colors are meant to make them unappealing to predators. Their colors tend to fade as they get older. A threatened ladybug might play dead or crete disgusting fluid that will protect themself. Their Aphids. Aphids are soft insects that suck the

Some larva containing vials had hatched into flies. Counting of the flies began at this point. As flies started to grow, at different rates for each vial, with in the first seven days after all larva had hatched the flies were counted. The procedure was done according to theDrosophila manual (45-2620)