Sowbugs are commonly found in damp and decaying leaf litter, under rocks, wood, and in basements (Aune et al. 2015.). We conducted an experiement involving ten sowbugs and their varying responses to light intensities. We used an arena to have one fully lit side while still covering up the other side with two different materials. The oberservations we took showed a correlation between varying light intensities and the sowbugs movement. The results supported our hyopthesis that based on their biology, sowbugs will respond differently to varying light intensities.
Based on our research and understanding of sowbugs, we decided to pose the question how will sowbugs react when exposed to varyings intensities of light. From each of our own experiences with sowbugs we concluded that they perfer to be in environments with little to no visible light. Sowbugs are gray crustaceans that are usually found in the
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The screens blocked approximately 45% of the light from entering one section of the arena. The other section of the arena remained open with no cover. The sowbugs were seperated into two groups of five. We placed the mesh screens on one side and observed the number of sowbugs one each side of the arena every thirty seconds for a total of eight minutes. We then seperated the sowbugs evenly and conducted the experiment one more time switching the mesh screen to the opposite side. After performing four experiments, we found that our results did show a trend in sowbug behavior in response to the varying intensities of light. The number of sowbugs in the covered side of the arena rose each time we did the experiment leaving the fully lit side almost empty every time. During the first third of the experiment in terms of obersation time, the sowbugs appeared to move back and forth between the lit and dark side evenly before ultimately deciding to migrate to the dark
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
The Artemia franciscana can survive in extreme conditions of salinity, water depth, and temperature (Biology 108 laboratory manual, 2010), but do A. franciscana prefer these conditions or do they simply cope with their surroundings? This experiment explored the extent of the A. franciscanas preference towards three major stimuli: light, temperature, and acidity. A. franciscana are able to endure extreme temperature ranges from 6 ̊ C to 40 ̊ C, however since their optimal temperature for breeding is about room temperature it can be inferred that the A. franciscana will prefer this over other temperatures (Al Dhaheri and Drew, 2003). This is much the same in regards to acidity as Artemia franciscana, in general thrive in saline lakes, can survive pH ranges between 7 and 10 with 8 being ideal for cysts(eggs) to hatch (Al Dhaheri and Drew, 2003). Based on this fact alone the tested A. franciscana should show preference to higher pH levels. In nature A. franciscana feed by scraping food, such as algae, of rocks and can be classified as a bottom feeder; with this said, A. franciscana are usually located in shallow waters. In respect to the preference of light intensity, A. franciscana can be hypothesized to respond to light erratically (Fox, 2001; Al Dhaheri and Drew, 2003). Using these predictions, and the results of the experimentation on the A. franciscana and stimuli, we will be able to determine their preference towards light, temperature, and pH.
..., Department of Zoology, Miami University, Oxford, OH, Available from Journal of Insect Physiology. (46 (2000) 655–661)Retrieved from http://www.units.muohio.edu/cryolab/publications/documents/IrwinLee00.pdf
In the lab the isopods were observed in a way to where behavior and structures could be properly recorded. The isopods were revealed to two dissimilar scenarios, normal temperature water vs. warm temperature water, to calculate which environment was most preferred. In each distinct scenario ten isopods were placed ten a choice chamber, one side being normal temperature (26.7celsius) and the other being warm temperature (43.3 celsius) , and observed for a total of ten minutes with thirty second intervals which was when we recorded our observations. After observations, it was seen that normal conditions was the most preferred environment by the isopods. In the scenario the Isopods exhibited taxis behavior, which is behavior caused by factors such as light, temperature, water and such. Nothing physical, but rather environmental.
On his 17th birthday, Cameron Griggs and his parents, drove to the office to pick up the papers that would change his life. Three months later he kissed his mum goodbye as mixed emotions of fear and excitement flooded his body.
To conduct the experiment, the beetles were massed, then attached to a petri dish with a 30 centimeter piece of dental floss. The beetle’s mass was the independent variable. Afterwards, the floss was tied to the beetle’s midsection with a slip knot. Then, the beetle was placed on a piece of fabric with the petri dish attached to it. As soon as the beetle was able to move with one paperclip inside the petri dish, more were added, one by one, until it could not move any further. After the beetle could not pull any more, the paperclips were massed and the results were recorded. The dependent variable was the mass that the beetles could pull. No control group was included in this experiment.
Outline the physical similarities between the (Blaptica dubia) cockroach and the cricket. Explain previous studies on physical stress in the cricket and in different species of cockroaches. Briefly discuss how the metabolic rate between the two species has been found to be very similar.
T. californicus is found from Alaska to Baja in small, shallow tidepools and tidal flats in the upper spray zone where they cannot avoid the full effect of visible and ultraviolet (UV) radiation. Individuals assemble in areas of lower radiation at midday, yet have no preference to the intensity of light at dawn and dusk (Hartline and Macmillan 1995). These tiny arthropods inhabit all types of marine sediments from sand to fine mud and ooze. Along with plankton, T. californicus eats microscopic algae, protists, bacteria, diatoms, algae and microbes (McGroarty 1958). When the concentrations of the species in their habitats are high, T. californicus will turn to cannibalism for a food source. The nautilus eye present in the species is rich with fatty acids and provides a good food source for the animal.
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
Sberna, Robert. House of Horrors: The Shocking True Story of Anthony Sowell, the Cleveland Strangler. Kent, Ohio: Black Squirrel Books, 2012. Print.
Flies are about at all times and it is hard to concentrate. Also, some of
In creating the Paine killer Spider, the Eco Beaker simulator proved to be a easy and useful way of a conducting the experiment. By randomly selecting parameters for the spiders' eyesight, speed, and reproduction the Spider Division was we able to come up with numbers that would stabilize the ecosystem and allow for the genetically produced spider and aphids to live together harmoniously. In a matter of hours the Spider Division was able to come up with a set of parameters for the Paine Killer Spider that would allow for perfect biological control. While there could be numerous different combinations that could work for the different parameters, the Spider division found that the Paine Killer Spiders' parameters should be set at; 1 meter for sight; 1.
Their flesh gradually becomes clear and their white skeleton becomes visible. Moreover, their whole body would be covered by fuzzy microalgae.
The data collected showed that the activity of Fukomys anselli corresponded the closest to the temperature fluctuations at ten centimeters below the surface. The temperature of the environment showed more positive correlation to the circadian rhythm of Fukomys anselli compared to the other variables that include sex, reproduction viability, and social cues. Rather, the other variables excluding environment temperature only showed significant data when both sessions of the ninety-six-hour observation was combined. In the case of synchronization, synchronization showed once for both sessions one and
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