Homeostasis Essay

3. Thermal springs, such as Old Faithful in Yellowstone National Park, have temperatures above 100°C. How does adaptation make it possible for living organisms to inhabit such an extreme environment?

Homeostasis is a characteristic of life in which all Living things maintain. some of the traits of Homeostasis are perspiration and some form of breathing and other natural body functions. An example of a negative feedback mechanism is a Thermostat If the heat is turned on and is set at 80 degrees the heat is turned on, If the temperature drops below 80 degrees, After the heater heats the house to 80 degrees, it shuts off keeping the desired temperature. An example of a positive feedback system is when a baby is born. while the mother is in labor, a hormone is released that boosts and quickens her contractions. The more contractions causes more of that Hormone to be let out and it continues to goes on until the

Ectothermic animals are animals whose body temperature is affected by their surroundings. This means that if the environment is cold the animal will be cold. If the environment is warm the animal will be warm. This is because the animal doesn’t have the capability of regulating its body systems to keep a constant body temperature. When an ectothermic animal is cold, its heart rate will lower. When the animal is warmer, the heart rate will raise – as long as the temperature isn’t sufficiently high to harm the animal. (Campbell, 2005)

Freeman (2008) furthers Eckert et al’s argument by stating that the actin filaments of the muscle cell in organisms are able to intake ATP (adenosine triphosphate) faster and will move the organism faster when higher temperatures are imposed. This is because of an increase in enzyme reaction rates (Freeman 2008). These arguments can be applied to our experiment to help explain the trends observed. It can be argued that as the Gammarus setosus experiences the cold treatments, the organ of Bellonci senses the cold temperature, which in turn signals the organism to preserve its energy to protect itself; therefore, the organism will swim slower. In addition, the enzymes in the muscle cells of the organism, when experiencing the cold treatments, will have decreased ability to carry out enzymatic reactions, therefore inhibiting the uptake of ATP, which will cause the organism to swim slowly. Conversely, as the organisms are put into the heated treatments, the organ of Bellonci senses the heat, and allows the organism to swim faster, since it does not have allocate as much of its energy towards survival. Furthermore, the enzymes in the cells will be able to catalyze reactions more quickly, therefore allowing the organism to swim faster. However, when the temperature of the surroundings is too high, the enzymes will denature, therefore, reducing the activity rate of

direct calorimetry. Furthermore, the amount of oxygen in the chamber reveals the amount of cellular respiration of the organism. While also, test the effects of decreasing oxygen, and later increasing the heat on the metabolic rate of goldfish. I hypothesize that an increase in temperature will increase their metabolic rate

homeostasis. Joint homeostasis is maintain with the balance between build up mechanism and break down mechanism of the joint. Imbalance homeostasis occurred when anabolic effect is slower than catabolic effect of the joint. This will result in joint instability (Goldring MB, 2006).

We have noticed in other experiments that smaller animals have a higher surface-to-volume (SA/V) ratios than larger animals with a lower SA/V. After reviewing through articles, we hypothesized that endotherms with small bodies will have a higher metabolic rate than endotherms with large bodies. We tested this by making 6 clay cubes (different sizes) and placed them in ice for 10 minutes and measured them in 2-minute intervals. Our results supported our hypothesis because the larger clay with the smallest SA/V had the slowest cooling rate while the smallest cube with the higher SA/V had the fastest cooling rate.

Somewhat more precise descriptions can be made by using the terms poikilothermic and homoiothermic. The body temperature of poikllotherms is relatively variable, while that of homeotherms is relatively constant.

I started my walk on the climate trail that was referred to me by the climate watch website. The park offered us around 35km of walking trails. Before I began my project I made sure the maps leading us to the trail was printed out the day before. After walking around for about 40 minutes I encountered the first species which is the Australian Magpie. The reason this particular species was picked was because, during the time I was walking I found it difficult to record sightings of the other bird species that climate watch was interested in, therefore I decided to observe the Australian Magpie which was common in all parts of Australia. The species data was collected via the guide of the climate watch website. The birds built was strong and sturdy, and it was perching on a nearby branch that was in eye view. The observations were done based on the behaviour of a number of 5 birds. They appear to be calling out to one another in a loud but calm tone. According to the Journal of African Ornithology, high temperatures can posture critical thermoregulation challenges for endotherms, and deciding how singular species

Homeostasis Homeostasis works to maintain the organism's internal environment, where the body's processes are able to function at a level that would allow life to continue in that organism. The three systems which are controlled by homeostasis are the respiratory, cardiovascular, and muscular systems. Changes to the cardiovascular system are often a result of changes in the activities of other systems.

The underlying theme between all three studies is microevolution, over time the Rattus Norvegicus were able to adapt to type of the environment they were reared in by adjusting their metabolism. Although they produced many progeny, the ones with the greatest fitness, and had produced the most young were the ones with the advantageous trait. They would either have a higher metabolism during cold climates or a low metabolism in a warm climate. There was a distinct inverse relationship between the thermal environment and metabolic rates found in these rats.

There are many definitions of what constitutes an adaptation and a great debate amongst many famous biologists and philosophers, each championing their own definition of adaptation. Historical definitions include the ‘design’ oriented approach of Williams, who claims

Another example of adaptation is how the Emperor penguin is able to conserve energy levels through a reduction in heart rate to 15% less than its resting heart rate during deep dives. They are also able to save heat by reducing blood flow to their extremities. They also show behavioural adaptation, as to help everyone stay warm, up to 6,000 male Emperor penguins can cluster together to conserve heat while they incubate their eggs, with temperatures reaching 20ºC above ambient

Butterflies are ectothermic, they are dependent on external sources of body heat, it can be problematic form them when it’s cold . or lack of sunlight. Their wings help them regulate body heat, via metabolic processes, also use added heat from the sun. Based on our hypothesis we thought the all black butterfly compared to the mixed black and white butterfly would have a higher rate of change in temperature. In T-test comparison 1 our null hypothesis was black and white butterfly will have a lower rate in change in temperature, and our alternative hypothesis the black butterfly will have a higher rate in change in temperature. After we pulled together the results of all the statistical analyses, we discovered that the all black butterfly had

Using the giraffe as visual organisms Darwin implicated that there was two kinds of giraffes, long neck and short necked, he believed that the short necked giraffe died out because it couldn’t reach the leaves, and the long necked could reach the leaves, as seen today. While Lamarck thought that there was only ever one species of giraffe, it began with a short neck and over time the nervous fluid was releases and the giraffe neck became longer allowing it to reach the leaves. For animals that live in areas where resources such as food and water are rare for long periods of time, the ability to conserve fat and water in the body can mean the difference between life and death. An example of this is the Bactrian camel, the two humped mammal lives in the harse environment of Central Asia. Temperatures range from -20 F to 100 F. The camels preserve fat in there humps, which when needed converts to water, another adaption is that they can forge sweat up to 105 degrees F. Showing the similarities with Darwin and Lamarck’s theory that organism will adapt to their environment to