For this lab investigation, our question was do pillbugs prefer vinegar or plain water in their environment? Our hypothesis was that if they were given the choice, then they would choose the water side because their natural environment is not as acidic as vinegar. After we tested this hypothesis, the data that we collected over the course of 20 minutes supported our theory. At the end of the first minute, there were 3 pillbugs on the vinegar side, and 37 pillbugs on the water side. Then, after 10 minutes, there were 4 pillbugs on the vinegar side, 30 pillbugs on the water side and 6 pillbugs that were missing. After 15 minutes, 4 pillbugs were on the vinegar side, 28 were on the water side and 8 were missing. Finally, at the end of the 20th minute, there were 3 pillbugs on …show more content…
There were approximately 8x the amount of pillbugs on the water side compared on the vinegar side. Many sources of error could have occurred during the experiment, however. One possible source of error was that about half of the pillbugs were actually sowbugs, an isopod crustacean that has extremely close relations with the the pillbug. The main difference is that sowbugs do not roll up. This could have been a source of error because the difference in the two species may have attributed to the preferences of the isopods in the experiment. A second possible source of error was uneven lighting on our experiment. We gave our best effort to control the lighting and background as much as possible so that the experiment would not be affected, but there could have been something that was overlooked because a classroom environment is not the easiest thing to control. The last source of error was something that could not have been avoided. As time goes on, the pillbugs could have slowed down their movements compared to when they were first dropped into the bin due to their natural
We observed Sowbugs in multiple environments to determine which environment they preferred. The observational chamber was a rectangle box split equally in half. One side of this rectangle was filled with dry sand that had been heated for five minutes by a lamp, and the other side was filled with damp soil that did not receive the lamp heat. We placed each sowbug on the middle boarder of the cool, damp soil and the hot, dry sand. We each chose one sowbug to track, and made a record of its placement each minute for five minutes total. We repeated this process three times. After each repetition, we removed the sowbugs, and replaced them with new sowbugs to observe. After this observation, we shared, and recorded our results. The sowbugs spent
5. You will be using this tutorial to help you find references for the experiment and laboratory report you will be working on during lab on pill/sow bugs (see Lab 2 Activity Two in the lab manual). List 4 specific keywords you will use when searching for literature relevant to your pill bug experiment. You should not list “Boolean” operators as keywords. Note that you often will find relevant and very useful literature with related species (not just pill/sow bugs!) (2
Planaria usually live in water, water doesn’t have any effect on them which the reason why it is used as a control group in this experiment. Planarian will be put near the edge in a two-chamber tray containing water, in the side that is not covered with a dark piece of paper. Five planaria will be tested in a 2- chamber tray. We will measure how long it takes the planaria to move from the edge of a chamber receiving light, to the dark chamber. Subsequently, start by adding the lower concentration of caffeine in the water, replacing planarian in the same position and measuring how long it takes now to go back to the dark chamber in the presence of caffeine. We will duplicate the same procedure with higher concentrations of caffeine and additionally take the average of the time all five planaria took to move from the edge of the chamber in brightness, to the dark chamber in different concentrations of
Abstract: The house cricket, Acheta domesticus, was used to test whether food and potential mates drive aggressive behavior. Male crickets were randomly selected in pairs and place into a cage to observe aggressive behaviors in the presence of no food, food, and female. The cage provided a confine area for the crickets to fight one another while the variables of food and female were used in attempts of increasing aggressive interactions between the male crickets. There was no significance found through this experiment due to a lack of data. It was discovered that the experiment would have to be done at a larger scale to be able to see any significance in the two variables.
My Hypothesis was that the maggots would change color from eating the food dye injected into the chickens. And if they did change color I predicted that they would visit at least three chickens.
Introduction: In this lab we are testing if pillbugs will ball up the more they are in danger.
The metabolic rate for the cricket and the cockroach will be different when physical stress and temperature changes are present.The null hypothesis is that the cricket’s metabolic rate will be similar to (Blaptica dubia) cockroach’s rate when physical stress and temperatures changes are present.
Pillbugs, A.K.A. sowbugs, are terrestrial isopods that belong to the Crustacea class. Other crustaceans that pillbugs are related to are lobsters, crabs, shrimp, and crayfish. These small, half inch creatures are classified as Arthropods due to their jointed legs. They have two pairs of antennae, four pairs of mouthparts, and seven main “torso” segments. After molting four or five times, a pillbug has entered adulthood. They first shed their posterior half of the skin, then, about two to three days later, the anterior half of the skin is shed. Pillbugs can be found in moist areas, such as near a broken sprinkler or under a decaying log. This is because the pillbugs, being crustaceans, breathe with gills, and must get their water through the
A 33 year old male arrives to the 7th Group Troop Medical Clinic (TMC) complaining of several, small sores on the left arm for two days. Patient states they are annoying due to the urge to itch them, but otherwise not painful. Patient noticed them while returning from a one week, temporary duty assignment at Fort Bragg, NC.
My experiment is testing one of the five senses of my dog, Blaze. I am testing for taste. In this experiment the question I am going to answer is, Which of three flavors of treats will my dog prefer? The treats are made by the same company, Beggin’ Strips from Nestlé Purina PetCare Division, but they are different flavors. The flavors used will be Hickory Smoked Bacon, Bacon & Cheese, and Bacon & Peanut Butter. My hypothesis for this experiment is, Of the three flavors my dog will prefer the Bacon & Cheese flavor the best. I chose this topic for my experiment because I have a major interest in animals and I am hoping to get a degree in some form of veterinarian services, such as zoology.
The experiment was made to figure out how mealworms react to different temperatures and which environment the worms liked better. The data and results of this experiment revealed that most of the mealworms prefer colder environments instead of hotter ones. Four out of the six mealworms prefered the cold over heat. The cold areas are better for mealworms because the worms are nocturnal, which means these worms prefer cooler and darker areas. In the beginning of this experiment most of the mealworms wouldn't move very much and would stay put in the center of the container. The mealworms were distracted by trying to escape, and there were some small crumbs in the container that must have also distracted the worms. The conclusion of this test on
From these experiment many questions and future studies are brought to the table. Some questions about the experiment may include the reliability of the test suspects. Due to the different lifestyles and conditions of each test subject it could have and affect on the results of the experiment. Also the article states that there could have been a mistake in the values of PD__AMP. A future study similar to this may be hookworm’s effect on other disease like issues in the immune system. It would relate to the past two studies because in both of the previously done studies it tested the hookworm’s effect on issues with the immune system. The future studies could be improved by making the test suspects in the most similar conditions and lifestyles as possible. Also they could use a larger number of test subjects to have more accurate results.
In this essay I will the experiment that a group of researchers conducted to determine which vaccine is more effective for preventing getting the flu. There were two types tested: a shot and a nasal spray. The numbers are as follows: 1000 participants were selected at random with 500 people getting the shot and 500 the nasal spray. Of the 500 people were treated with the shot, 80 developed the flu and 420 did not. People who were treated with the nasal spray, 120 people developed the flu and 380 did not. Level of significance was set at .05. Proportion of people who were treated with the shot who developed the flu = .16, and the proportion of the people who were treated with the nasal spray was .24. The calculated p value = .0008.
The experiment measured the survival rate, the growth rate, and the size of the brine shrimp at the time harvested in various environments. To obtain these measurements, three environments were created: sea water, brackish water, and freshwater. For this experiment the scientists used 5 liter plastic buckets. Every two days, half of the water from each bucket was discarded and new water, of each respective salinity, was added into each bucket...
Materials used for this experiment includes 8 plastic cups, 8 ziplock bags, and rubbing alcohol. The plastic cups and ziplock bags were numbered from one through 8. The cups were placed in two different habitats; four cups in each habitat. The first habitat was near a canal and the second habitat was under a tree. In the first habitat, a six-inch hole were dug and cup one was