Woodlice Lab Report Example | Topics and Well Written Essays - 750 words

Woodlice - Lab Report Example They have a shell like exoskeleton which progressively shed as they grow. The shedding occurs in two stages were the back half sheds first followed by the front part later usually after two to three days later as opposed to the way moulting process occurs to other antropoda where the cuticle are shed in a single process. Metabolic rate is temperature dependent in woodlice which is in contrast to mammals and bird where their rate of respiration depends directly to the external environmental temperatures (Jordan 100). Woodlice are claimed to have unpleasant taste like that of a urine despite been a crustacean which is different from the taste of other crustacean like lobsters or crabs. Woodlice breathe through their plepodal lungs and live in terrestrial environment usually damp or dark places to reduce the rapid rate at which they lose water through their cuticle and excretion (Sutton, Stephen, Paul, and David 67). Although woodlice are preyed by a wide range of insectivores itâ€℠¢s the spiders that prey on them exclusively. This experiment was conducted to determine the relationship between the variation of traits and the natural selection and the hypothesis of this experiment was that the predator preying on the woodlice determine the speed of woodlice to be found in an environment (Smith, SiaÌ‚n 98). The length and dorsal plate in all woodlice was measured using a microscope and recorded. The speed of three woodlice was obtained by taking two rulers to measure the distance and then assorted utensils for simulating predation and to mimic a predator was simulated and the timer was set from the time all the three woodlice started moving until they all reach the end of the two rulers and then recorded in seconds. Woodlice where placed in large specimen dishes and the predator for this experiment which was a spider was simulated RESULTS The woodlice traits were varying as like were the highest standard deviation error was obtained from the speed and the lowest standard deviation error was obtained from the length while the standard deviation error was zero as illustrated in table(1) below Trait Dorsal plate number Speed (seconds/10 cm) Length (cm) Color (values using soil color chart) Mean 7 21.20833333 0.991666667 5.083333333 Standard Deviation 0 +10.29131828 +0.21450989 +1.248187091 Standard Deviation Error 0 +2.100706547 +0.043786648 +0.254785123 Table (1) showing traits, mean, standard deviation and standard deviation error of woodlice In the frequency distribution below blue represents the total number of woodlice while the red represent the number of woodlice that survived after the predator was unleashed. From the graph the number of survived population is higher than the total populati on between the speeds of 1-20 and the same is exhibited between the speeds of 21-40 and between the speeds of 61-80 but between the speeds of 41-60 no woodlice survived. Frequency distribution of woodlice characterized by speed DISCUSSION From the table and the frequency distribution above it is clearly that there is a relationship between the population of woodlice that survived the experiment and their speed. Woodlice that were much fast and those that are somehow slower survived more compared to those that were of average speed as none of them survived and also the predator

Legal terminology Essay Example | Topics and Well Written Essays - 500 words

Legal terminology - Essay Example Especially bad were the members of a gang called â€Å"The Big Bad Wolves,† each individual member known as a â€Å"Wolf.† So Red felt it was very foreseeable for trouble to come her way. One member of the Wolves used deceit to set up a scenario where he could trick Red out of her money. On that occasion this Wolf told Red that his mother was ill in another state and he needed money to go see her. However, Red knew the Wolf’s background and knew his mother was dead. Therefore, this amounted to fraud. Red thought such people were just mean per se, inter alia. Another Wolf once falsely claimed he was a police officer and tried to handcuff and block Red’s way in the forest. This amounted to the torts of false arrest and false imprisonment. Worse, yet, this tortfeasor Wolf later claimed in a letter to a newspaper and to all who would listen that it was Red who impersonated a police officer and not the other way around as was the truth. Red knew the letter was libel and the oral statements slander. This same lowlife Wolf once tried to sue a doctor for malpractice who stopped to help him when he was injured. Luckily, the Good Samaritan Statute protected the doctor and the lowlife Wolf lost that lawsuit. While these are not willful torts like battery, this was pretty bad behavior on the part of this Wolf fellow and it was prudent of Red to be cautious. So, Red finally reached her grandma’s house. Inside, however, were three Wolves surrounding grandma and her servant Millie. Millie helped grandma with her chores such as laundry and shopping. The three Wolves were up to no good. One Wolf was on his I-Pod conjuring up scams which amounted to a cybertort. Another Wolf was lighting up firecrackers and throwing them out the window. This constituted a nuisance to grandma’s neighbors. The third Wolf held a large tree log over grandma and kept saying he was going to beat her with it. This amounted to an assault. Thereafter, grandma and Red