Biophysical Ecology and Pattern Recognition Essay

he experimental variable in this experiment was the changing number of Alka Seltzer tablets that were put into the 250mL beaker of vinegar. Some of the control variables in this experiment were that the same beaker and thermometer were used for each trial, the same type of vinegar and Alka Seltzer were used for each trial, and the same amount of vinegar. The original Hypothesis was that more Alka Seltzer would increase the temperature of the vinegar was not correct. After analyzing the data it can be seen that for the first trial the temperature did not change as it stayed at 24 degrees Celsius before and during the reaction with 1 tablet, also for trial two with two tablets the temperature stayed the same at 23 degrees Celsius and did

Keeping the experiment isolated on the focus of body size is as simple as not changing any other variables concerning the experiment. Therefore, predator number, predator size, habitat type, and any other possible variable in the experiment that is not body size will be kept as consistent and identical throughout the groups and replicable tests as

Again with the same temperatures of one degree, eleven degrees, twenty degrees, thirty degrees, and forty degrees. All the temperatures are in Celsius. The one degree C time is at 24.59 seconds, only two seconds off from the first trial. The eleven degrees C time has 20.39 seconds. At twenty degrees C, the data showed the time was 15.54 seconds. Thirty degrees C had the lowest time of the thirty degrees group, at 8.97. The last temperature was forty degrees C with the lowest time at 7.28 (See appendix two). All the data for trial two supports the hypothesis for this

Analyze results – Assume that your experiment produces results identical to those seen in Table 4, what type of graph would be appropriate for displaying the data and why?

The pill bugs lab was done to solve the problem of which type of food the pill bugs preferred, cucumber of pepperoni. My hypothesis was that the pill bugs will favor cucumber over pepperoni. In order to carry out this experiment, we used the chamber method to determine which food was favored by the pill bugs. Pieces of cucumber and pepperoni were placed on each end. Then five pill bugs were placed in each chamber, and their movement was observed and recorded. Because the results were so close to each other, we concluded that their reaction to the stimulus was a kinesis reaction, and it is only random. My hypothesis was not true because the standard error from the number of pill bugs in cucumber chamber and pepperoni chamber overlapped. This means that there is no scientific reason for why the pill bugs chose cucumber over pepperoni. I learned many new things in this experiment, such as, how to use a choice chamber, and how to calculate the standard deviation and error of the data. Also, I learned how pill bugs react to an outside threat.

A positive correlation was observed between the entropy of activation and environmental temperature, with large negative values for ΔS ‡ for the cold-adapted species and high positive values for the tropical species. Therefore, as temperature increases the entropy of activation causes the Gibbs energy of activation to have a lower value making it more spontaneous with an increase of temperature. On the other hand, there was a positive correlation between enthalpy of activation and environmental temperature, with a range of ΔH ‡ from 6,850 calorie mol-1 for the Antarctic species to 33,300 calorie mol-1 for a species from an equatorial hot springs soda lake. Consequently, as the temperature increases the enthalpy of activation causes the Gibbs energy of activation to have a higher value making it less spontaneous with an increase of

(Graph is attached on a separate piece of paper) During this experiment, there were five sections of a temperature-gradient tank that were all different temperature ranges; 2-7 degrees Celsius, 7-12 degrees Celsius, 12-17 degrees Celsius, 17-22 degrees Celsius, and 22-27 degrees Celsius. The fish who were originally removed from the same stock tank (22 degrees Celsius) were then placed in the temperature-gradient tank. The experiment’s purpose was to observe which temperature of water the fish prefered best and gravitated towards. After studying the results from the experiment, there is a definite difference between sections; the temperatures that ranged in the middle C section (12-17 degrees Celsius) were more preferable to the fish because

Experimenting on the animals the results that they get are not always accurate. Not all

Scientists Heather Bateman and Mélanie Banville tested three sites (non-urban, urban rehabilitated, and urban) for the abundance and diversity of reptiles. The experiment was well designed for many reasons. First, the scientists who performed the experiment provided a lot of reliable data. For example, the data stated that reptile abundance for non-urban habitats was 42 reptiles, urban rehabilitated habitats was 36 reptiles, and urban habitats was 6 reptiles. Also, the experiment contained many types of species. 7 of the 8 species were lizards and one was a snake (Western Diamond-backed Snake). The same 8 species were tested at each site. The combination of reptiles showed the movement of different species and which species are the most sensitive

AIM The aim of the experiment was to observe the effects the concentration as on the rate of osmosis. HYPOTHESIS The smaller the amount of concentration the quicker osmosis will occur.

this could be due to the size of the sample of beetroot used, if the

We decided to base this experiment on the Selection and Adaptation Lab that we performed previously. This lab was important to our experiment because it allowed us to learn about the different morphometric traits that occur between different species. We wanted to expand on the idea of morphometrics and test frogs, more specifically, the effect that temperature had on the growth of Eastern Narrowmouth frogs. Upon researching how temperature affects frogs, we found three articles that were relevant to our research. According to Gillooly and Abram, the metabolic rate of individual organisms will increase exponentially with increasing temperature.

Reptiles are a group of vertebrates that live under various environments both aquatic and terrestrial ranged from the tropical desert to the Arctic Ocean. Common types of reptiles include snakes, lizards, salamanders, crocodiles and turtles. Reptiles are ectoderms that adjust their own body temperature according to the environmental temperature, and reptiles can survive in relatively extreme temperatures. It is interesting to study whether the body temperature affects the locomotion of reptiles, and if it does, how the relationship between body temperature and the locomotion of reptiles plays out. What contributes to such temperature’s effect on locomotion?

Reptilian populations are under constant scrutiny from the environment. The reptilian populations rely on close to equal sex ratios for their species to thrive. With the changing climate more and more reptiles are at risk. This is because global warming may influence health, spatial distribution, growth, and reproductive output (Simoncini 2014). Along with that, the change in temperature will affect the incubation temperature, embryonic development, sex ratios, and hatchling success (Simoncini 2014). Not only that, but global change may result in a stronger sex ratio bias, which could lead to extinction of TSD reptiles (Hulin et al 2009). An all-male or all-female biased population adds more stress on a population to survive. Scientists are concerned populations will dwindle or possibly become extinct if reptilian species cannot adapt to climate change. Global warming will result in increased atmospheric temperature in a short time scale and may modify several life history traits in populations (Hulin et al 2009). Reptilian species may not have the time to physically adapt to the environmental changes. Species could overcome climate change by modification of nesting phenology or behavior (Hulin et al 2009). Some temperature dependent sex determined species may be able to compensate by nesting in cooler areas (Refsnider 2012). Not only will temperature change affect sex ratios, but it can alter offspring phenotypes and performance. A study was conducted to observe the effect

This investigation was carried out to determine if the rate of movement of porcellio scabers changed when it was placed in different temperatures and therefore if the temperature affected their ecological niche. My graph is slightly different compared to the Rosehill College’s practical investigation of porcellio scabers graph, found under the biology section on the Rosehill College webpage. The Rosehill College porcellio scaber graph from 5°C to 15°C decreased in average rate of movement and from 15°C to 25°C, it increased in average rate of movement. My graph did not decrease at any point as the average rate of