Kermode bears, a certain type of black bear, are white because they have a special a recessive gene called MCR11. MCR1 is a recessive gene that causes the pigmation in the bears skin to turn white. Even though they are white they are not albino (Kermode.) MCR1 is caused by ultraviolet light (No, Name.) Even though the bears are white it doesn’t mean the parents have to be (Bec.) They just have to pick up the gene. Kermode bears are most commonly found on Princess Royal Island in south east Alaska. 1/3 of the bears there are white…
This paper will clearly display a diagram of an organism of the student’s choice. This organism will display all of the main structures of the primary organs by labeling. Careful research will exhibit the concepts of natural selection and adaptation. Selected organism will address the proper concepts that apply. Three physiological adaptions were investigated by the student. Upon conclusion of the student’s investigation, knowledge will grant the understanding of how physiological adaptions allow the selected organism to thrive in its ecological niche. The organism that was selected for this essay is the Fish.…
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)…
This experiment was designed to identify the effect of cold-water temperatures on the respiration rate of goldfish. The respiration rates helped to identify the goldfish as being ectotherms or endotherms. Organisms exchange gases with their environment through a process called respiration or breathing. Aerobic respiration, also known as aerobic metabolism, occurs when oxygen is taken into the body and sent to all its cells; the oxygen is then used to break down food for energy (White and Campo 2008). Respiration can be experienced through several structures such as the lungs, tracheae, gills, and integument in order to obtain oxygen. All organisms that experience respiration are either endotherms or ectotherms. Ectotherms are animals that depend on their environment for body temperature. These animals respond to changes in their environment in order to maintain homeostasis, the stable, internal conditions of the organism. Animals that are warm-blooded and can regulate their body temperatures internally regardless of their environment are endotherms. For ectotherms, regulating body temperatures can require more work. Those aquatic animals have adapted several techniques to stay alive. Larry Crawshaw explains that animals, both aquatic and terrestrial, seek to avoid stressful thermal environments or to compensate for the temperature change by mostly lowering the metabolic rate (1979). Lowering the metabolic rate allows certain enzymes to be produced and chemical reactions to happen within the fish that actually warms it up. While lowering metabolic rates are important, respiration regulation is also important. Stephen C. Wood also believes that ectotherms need behavioral mechanisms for temperature control. These mechanisms could include slowing breathing rates to conserve energy and releasing certain chemicals into the body (1991). This…
Polar bears are extreamly well adapted tohunt their prey under water. Keeping warm is no problem for polar bears infact sometimes polar bears have to lay flat on their stomachs on the ice just to cool of. Polar bears have the thickest fur of any bear species. Their fur has two layers. The first layer, the under coat, is the closest to their body it consists of thick, plush, hair that retains heat. The next layer, the outer layer, is a layer made of "guard hairs" and are not actually hair at all they are hollow tubes. the tubes trap air for insulation andalso reflect a visible wavelengths of light in their hollow air space, which combine to make the fur whiteeven though it is in fact colorless. The white coloring provides camoflauge for the bears allowing them to blend in with there white snowy surroundings. Under their fur polar bears have black skin that absorb the sunlight and under that they have a 4-inch layer of blubber. This blubber keeps polar bears warm in the cold water. Polar bears have fur at he bottom of their feet providing extra warmth and traction to the ice. they are adapted to swim 60 miles without a pause to rest. They have have the ability to reduce their metabolic rate when the food is scarce and again when it's…
The Huge Bear Grizzly, the Media of the Mountain, is a neighborhood week by week daily paper serving Enormous Bear Lake, California, United States and encompassing groups. The Enormous Bear Grizzly is possessed by Brehm Interchanges. A free form, entitled the Grizzly Weekender, is conveyed to most regions of the Huge Bear Valley each Saturday. The daily paper additionally delivers a week after week customers aide called the Huge Bear…
For animals, being able to adapt in nature is a matter of life and death. Through evolution and natural selection, animals have acquired behavioral and physical traits called adaptations that enable them to acquire food, escape predators and attract mates. The cheetah has the speed necessary to run down its prey, monarchs secrete a poison that deters predators from feasting on it and the hummingbird has a very long tongue for extracting nectar from flowers. These are some of the more obvious adaptations. However, if we take a closer look, we see that all organisms have several adaptations for living and surviving in their environment. The polar bear is a great example of adaptation. This bear is very different from its cousins to the…
Animals such as insects, bears and arctic foxes, have adapted to living in the tundra. For example, since food is scarce in the winter, bears have adapted their diets and will dig up roots or even eat seaweed found along water sides in order to avoid starvation. The arctic fox has also adapted to surviving the climate, such as having thick fur and a good supply of body fat to help keep it warm. The arctic fox also has a low surface area to volume ratio, which means less of its surface area is exposed to the arctic cold and less heat escapes the body.…
If you are out hiking in the mountains then you are a lucky person because mountains are amazing places to be. But, what should you do if you happen to come across a bear? You may see a bear at a safe distance or you may come around a curve in the trail, surprise a bear and see one up close. What you do in either circumstance could save your life.…
It is not a picky eater, and learnt to eat many types of food. It will eat many parts of plants like grains, acorns, wild berries and fruits. It also eats animals which include frogs, clams, mice, rabbits, white grubs and even beetles. They also feed on the eggs of birds such as ducks and chickens.…
A biotic factor is the predator and prey relationship. Etosha displays this through many of its organisms- turtle and dove, cheetah and zebra, lion and frog, and snake and frog respectively. The parasite and host relationship constitutes as a biotic factory. An example of this is the squirrel, the host and the fleas, the parasite. There exists mutualism in Etosha. The mother fox finds bugs on its young ones and this provides food for the mothers. The bugs use the mother to live on and to live off of. Therefore, each organism benefits from their relationship. Competition exists between male bullfrogs over the female bullfrogs for mating. They may go to the extent of eating one another. The male lions also fight one another over the female lioness for mating. An example of a food chain in Etosha starts with bugs. Then, the bullfrogs eat the bugs. Bullfrogs eat other bullfrogs for competition and a lion eats the bullfrog. The squirrel has a long tail to shade it from the sun, which is an example of adaptation. Another adaptation is the large ears of the bat ear fox, which allow it to hear sounds of the bugs in the ground for food. The bullfrog camouflage in the swamp by cryptic coloration. It is the same color as its environment. These are the major biotic factors, which exist in Etosha.…
Environment Analysis: What special adaptations may be necessary for the environment or situation of the…
Individual Assignment(s): In class your group will be asked to answer the following question: The regulatory mechanisms that an organism uses result from an evolutionary process. Some organisms regulate their internal body temperature, and others do not. Make two suggestions as to what the “evolutionary advantage” might be for each of these two, quite different, lifestyles.…
Myths and Folktales haved played a big part in Native American culture since the beginning of their time. Stories are passed down from generation to generation so their ideas and history can be preserved over time. Many of these oral tellings have been translated into written pieces so more of the world can be exposed to these ideas. “The Earth on Turtle’s Back”, that is retold by Michael Caduto and Joseph Bruchac, and “When Grizzlies Walked Upright” are both great examples of two powerful Native American stories that retell two important myths. Although these two tales are very different, there are certain similarities that can be found. Both have the theme of how curiosity within women to the Native Americans…
Grizzly bears of North America have huge cultural significance on native American and European heritage (Kellert, 1994). Indigenous cultures revered these majestic species, its example can be seen in art and literature and Europeans settlers appreciated them for their economic values (Kellert et al., 1996). However, as our society evolved, we became distant from nature and “reverence for the bear was replaced with fear, exploitation, and subordination” (Kellert et al., 1996). Modern culture holds negative perception of them and one of the prime reason for that is the conflict experienced between humans and Grizzly bears. Human-Wildlife conflict, per the proceedings from International Union for the Conservation of Nature World Parks, occurs…