ipl-logo

Life Science Lab Report

796 Words4 Pages

Life Science 1 Lab Assignment Week 1 – Demo 1F Jing Dong UID: 504706115 Introduction The purpose of this lab was to use scientific method though a experiment, which include making observations, construct a hypothesis and test the hypothesis by the experiment. In this lab, the experiment is designed to use scientific method to observe the patterns of where do squirrel apply snake scent to their fur and to determine the behavior of two species of squirrels, which are Spermophilus beecheyi and Spermophilius variegates. The reason why we are investigating this experiment is because the rattlesnakes, which is the major predator of squirrels, and it seems that the application of snake scent (SSA) on squirrels’ fur were prearranged. …show more content…

The variable for this experiment were 5 regions of squirrels’ body. If we observe the application of snake scent is equally distributed in these 5 regions then it means the SSA is random and support the null hypothesis. Methods We watch four videos for both Spermophilus beecheyi and Spermophilius variegates, and we count the time that the squirrels apply the snake scent in the five regions of bodies. The five regions are flank, head, front leg, hind leg and tail. They acts as variable in the experiment. After the observation, we can use the data to have a chi-squared test. From the result of the test, we can either accept or reject the hypothesis and determine is the application of snake scent random or not. Results Table 1. Chi-Square results for S.

Show More
Related

  • Fruit Fly Lab Report

    678 Words  | 3 Pages

    The alternative hypothesis of this data set was that as the amount of methyl eugenol added to the fly increased, so did the number of flies attracted. According to table 3, there was a huge difference of flies in trap 1 where the original group has a total of 39 flies in contrast to 1 fly in the comparison group. However, after comparing the two other traps, although there were more flies captured with 0.50 mg methyl eugenol, the difference was not that significant with a range of 6-7 flies difference in the traps. After calculating the t-test, there was a p-value of 0.3 which was above the indicated range of 0.05 and a critical value of 1.3 which was higher than the indicated value of 1.002 with a degree of freedom of 4. Although the p value was about 0.05, the calculated t value was above 1.002 (vs. 1.3) which could mean that the null hypothesis was rejected.

    Read More

  • Squirrel Monkey Observation

    513 Words  | 3 Pages

    As we found the Squirrel Monkey exhibit in Monkey Village, we began preparing our data tables and papers to gather all the information needed. Firstly, we set aside around 10 minutes to draw the habitat and take pictures for future reference. Next, we began the initial sampling method, the ad-lib recording. In this type of recording, you call out and write down everything observed. We stood together in an area that we thought the monkeys were most populated and took the recordings.

    Read More

  • Barn Owls Lab Report

    1192 Words  | 5 Pages

    The data collected from previous classes had a total of 77 owl pellets that were dissected. Out of the 77 total of owl pellets that were examined, a total of 137 rodents skulls were found in the owl pellets compared to a total of 32 nonrodent skulls that were uncovered in the owl pellet. The data in Figure 1, demonstrates the average total number of rodent skulls compared to average nonrodent skulls found in the final spreadsheet from the total number of owl pellets dissected in each class. On average, the amount of rodent skull prey caught is 1.80 in an owl pellet in a night compared to 0.42 nonrodent prey skulls found in an owl

    Read More

  • Red Colored Prey Hypothesis

    818 Words  | 4 Pages

    This meant that in the population there were already ten different color of prey that occurred naturally. However, when the environment was a blue background with colorful flowers and butterflies, many of the different colored prey had gone extinct and the red prey had the highest number of survivors. Also, environment two was pink, white, and black plaid and the prey that had the most number of survivors in that environment was white. This demonstrates that depending on the environment, different variations of a trait would be successful. It also demonstrates that the adaptations in this experiment depended on the environments.

    Read More

  • Are Elephant Afraid Of Mice Essay

    493 Words  | 2 Pages

    But, after retesting the experiment they realized that was not the case. Only the presence of the mouse seem to stop the elephant in their tracks. The independent variables in this experiment were the methods (such as the elephant dung, the string, the mouse) used as well as the breed of the elephant and mouse. The dependent

    Read More

  • Folsom Zoo Observation

    639 Words  | 3 Pages

    Another disagreement between us during the observation was deciding rather the deer was moving its tail at a particular time or it was just a part of shaking its entire body. Our reliability report calculation indicated that 95% of our observation was agreed upon and only a small percentage was not, indicating we all observed the same behaviors with a clear concept of what behaviors we were looking for and how we needed to record

    Read More

  • The Burmese Python Invasion

    312 Words  | 2 Pages

    cold spell of January 2010, all of those pythons died (2010). All of this evidence leads scientists to believe that the Burmese Python invasion will stay in Southern Florida and not become a problem for the rest of the southern United States. Burmese Pythons are very elusive snakes and despite their large size, can be very difficult to find. In this study, tracking dogs will be used to find the snakes and their handlers will remove them once found. Dogs are known for their strong sense of smell and many are bred to hunt animals.

    Read More

  • Anabolic Steroids Lab Report

    634 Words  | 3 Pages

    1) Hypothesis: If we inject a rat regularly with anabolic steroids, then its testicles would shrink to about 25% of their original size. 2) Length of Experiment: 7 weeks Dependent Variable: Size of testicles Independent Variable: Injection of anabolic steroids Control Group: 5 rats given food, exercise, and cage. No steroids given. Test Group: 5 rats given steroids and all other necessary things (food, exercise, etc.)

    Read More

  • Panthera Leo's Social Behaviors

    647 Words  | 3 Pages

    They decided to study head rubbing and licking in the Panthera Leo to determine what role these social behaviors played in captive African lions. The

    Read More

  • Write An Essay On The Gadsden Flag

    545 Words  | 3 Pages

    The 13 coils on the snake represented the 13 colonies and way the snake was passive unless provoked, it would not attack without provocation and once provoked, it would not initiate a strike without first warning its enemies. The rattles, singularly, could not necessarily be heard but put all thirteen together and it creates a sound that can strike fear into the hearts of all whom hear it and its retaliation was very deadly. They will never surrender and if you decide to fight one, you had better be prepared for the consequences, much like the marine whom wears its

    Read More

  • Short Essay On Totem Pole

    868 Words  | 4 Pages

    This is mainly because, once again, I’m an introvert that tries not to get involved with other people or activities unless I can directly see how it will benefit and help me. My energy level also varies throughout the year, with most of the winter making me feel tired all the time. Certain days I’ll be super active and be basically running around constantly, but almost always I’m having lazy, sluggish days. The final trait I have is probably the “shell” that the snake has. As the website had stated, people who have the snake as a spirit animal usually have a tough shell that they hide behind.

    Read More

  • Defined In Psychology: How Schedules Changed Behavior

    965 Words  | 4 Pages

    In the study done by McSweeney, Roll & Weatherly, experimentally experienced pigeons were the participants. The study was looking at how different rates of schedules changed behaviour. The participants during the first condition were exposed to a response key that was a red light and the first schedule was a FI 30s. Then the FI was changed to 120s, 240s, 15s, and 60s. Then in the second condition the participants were exposed to a response key that was a blue light.

    Read More

  • Ants Food Experiment

    1891 Words  | 8 Pages

    The objective is to determine foraging preference of ants by observing and measuring their selection between three different sugar concentrated solutions (5%, 15%, and 30%). The hypothesis is that ants prefer high sugar concentrated solutions than low sugar concentrated solutions. The prediction is that most ants will prefer high concentrated solution (30%) than the less concentrated solution

    Read More

  • Bumblebees Hypothesis

    294 Words  | 2 Pages

    The hypothesis was that the mean number of pollen found on the legs was the same when compared to the mean number of pollen found on the mouth. This is from the pollen on flowers spreads on the entire bumblebee when it lands on the flower. The alternative hypothesis is that the mean amount of pollen was not the same when comparing legs and mouth. With the data, there was no statistical difference to the amount of pollen found on bumble bees legs compared to the amount of pollen found on a bumblebee’s mouth. When gathering the bumblebees, before they were caught they would land on the flower and walk around it and then gather the pollen.

    Read More

  • The Importance Of Reproduction In Species

    1413 Words  | 6 Pages

    The effects that pheromones have on the behaviour and physiology of animals is also significant in understanding mating rituals and sexual

    Read More

More about Life Science Lab Report

Open Document