Why Do Sea Otters Decline

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Pages: 2

Sea otters are a small mammal that lives in the waters along North America's west coast from California to Alaska. A few years ago, some of the sea otter populations off of the Alaskan coast started to decline rapidly and raised several concerns because of their important role in the coastal ecosystem. Experts began investigating and came up with two possible explanations. One explanation was environmental pollution, and the second was attacks by predators. At first, it seemed as if the pollution was the most likely cause of the population decline. One reason pollution was more likely was because of the known pollution sources along the Alaskan coast, such as oil rigs. Also, water samples taken in the area showed increased levels of chemicals

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Endangered Species Essay

built.5 California Endangered Species Act (CESA) goes more into depth: All native species of fishes, amphibians, reptiles, birds, mammals, invertebrates, and plants, and their habitats, threatened with extinction and those experiencing a significant decline which, if not halted, would lead to a threatened or endangered designation, will be protected or preserved.6 Though CESA became law to protect the endangered species, in 1997 two California Senators proposed laws to change CESA. Senator Patrick Johnson…

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Student: Waste and Population Size Essay

Final Exam Guide 1) Define Biodiversity. Biodiversity: the various forms of life that can best survive the variety of conditions currently found on Earth. 2) Discuss some threats to biodiversity. The Decline of Biodiversity and reasons for biodiversity loss is because: Habitat destruction Conversion- natural areas are converted to farms, housing, shopping malls industrial centers, etc Introduction of exotic species- a species introduced into an area…

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Essay on Student: Ecology and Species

be ~35 - 45 multiple choice and/or matching questions. This class is focused on general concepts and you do not have to get extremely detailed. The level of detail discussed in class and in the summary section at the end of each chapter will be sufficient. If you need to know specific examples (e.g., rain shadows, photosynthesis equation), it is stated below. If your notes and textbook do not explain things adequately for you, definitely look a topic up on the internet. Again, watch/read the…

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international relations paper

scientists concede that by the end of the century, most of the primary forest in the Amazon will be gone. (Jordan, Carl F. Amazonian Rain Forest. New York: Springer- Verlag New York, 1987. Print). The deforestation of the rainforest can be linked to the decline of popular species. The Amazon rainforest is the most bio diverse tropical rainforest throughout the world, home to thousands of plant and animal species. (Gradwohl, Judith, and Russel Greenberg. Saving the Tropical Rainforest. London: Earthscan…

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Essay about Water and Habitable Planet Unit

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Chemistry Report Essay examples

4 million gallons per day according to CNN. BP had no immediate plan of action after their B.O.P had failed and the race to stop BP’s nightmare has begun. Since the oil slick created by the Deepwater Horizon was the first of its kind, at a depth of 5,000 feet below sea level, BP called CEO of Wild Well Control for help. According to the documentary, Pat…

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Essay on Energy and C. Assimilation D.

the changing relative position of the moon with respect to the Sun and the Earth e. changes in warm ocean currents due to cyclical submarine volcanic activity 23. The majority of crustal activity on Earth is centered about a. the Mediterranean Sea b. the African continent c. the Pacific Ocean d. the Atlantic Ocean e. none of the above 24. The most eroded country in the world is a. Armenia b.…

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Essay on Human Evolution and Homo Sapiens

all of the tremendous variation of the natural world. 2. Darwin’s theory is sometimes referred to as “survival of the fittest,” but this phrase was coined by the social theorist Herbert Spencer, not by Darwin himself. 3. Strength and intelligence do not necessarily guarantee reproductive success, and are not important for all creatures and environments (such as the South American tree sloth). III. Virtually all of the debate about evolution is religious and political rather than scientific. 1…

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