I was a bit skeptical when I selected Environmental Science class to satisfy my requirement for a Natural Science class‚ however‚ this class has intrigued me and is more interesting than I expected. I have learned a lot about the environment‚ and I really enjoyed learning about ecosystems and the interaction between the biotic and abiotic of ecosystems. I found the earth’s major biomes particularly interesting‚ and would like to reflect on them. According to the text book‚ a biome is a large‚ relatively
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Name Class Date Ecosystems and Communities Chapter Test A (removed questions on Freshwater and Marine Ecosystems) Multiple Choice Write the letter that best answers the question or completes the statement on the line provided. _____ 1. How does an area’s weather differ from the area’s climate? a. Weather involves temperature and preciapitation and climate involves only temperature. b. An area’s weather depends on where it is located on Earth and the area’s climate does
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economy‚ demographics‚ Tibetan culture‚ and environment. The Tibetan Autonomous Region is situated in the Qinghai-Xizang Plateau‚ located in southwestern China. Tibet is a diversified region‚ with mountains‚ desert‚ grasslands‚ and forests. It is one of the largest grassland and forest areas in China. The area has large deposits of minerals and resources‚ including lithium used in the production of electronics. The regions gross domestic product in 2008 was 38 billion Yuan and 13‚000 Yuan per
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PHYSIOGNOMY - overall appearance of vegetation Considerations: growth form Function Size Coverage Leaf size and shape Leaf texture TYPES OF PHYSIOGNOMY 1. FORESTS- dominated by trees that form a closed canopy 2. GRASSLANDS- dominated by grass and herbaceous plants. Trees can either be far apart or absent 3. THICKETS- tall shrubs or small trees are dominant 4. DESERTS- very few plants rocks‚ and soil are more dominant Later on‚ animal life and their distribution was
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has a diverse effect on the ground layer vegetation. It was observed that tourists’ vehicles in the Maasai Mara left trucks and criss-cross the grasslands as they chased after elusive animals. This eventually leads to the degradation of the grasslands and development of multiple trucks. In a study‚ it was shown that the driving of vehicles in the grassland resulted in increased loss of vegetation cover on the parallel strips (wheel-tracks) and turning radii loops (Muthee‚ 1992 in Gakahu‚ 1992)
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Sustainable Development There are many definitions of sustainable development‚ including this landmark one which first appeared in 1987: "Development that meets the needs of the present without compromising the ability of future generations to meet their own needs." Sustainable development (SD) is a pattern of growth in which resource use aims to meet human needs while preserving the environment so that these needs can be met not only in the present‚ but also for generations to come (sometimes
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It also includes the acquiring and recycling nutrients‚ and the capture and flow of energy. Most amazingly‚ in one day a person could go from the desert and grasslands up and beyond the tree lines in the alpine tundra here in the state of Colorado. This is part of what makes Colorado so great! Central Plains Starting with the grasslands in the plains of eastern Colorado elevation around 4‚500 feet‚ also known as the short-grass prairie‚ this ecosystem is very dry and flat. "The summers are sunny
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June). Food vs. fuel: diversion of crops could cause more hunger. Environmental Health Perspectives‚ 116‚ A254-A257. Tilman‚ D.‚ Hill‚ J.‚ Lehman‚ C. (2007‚ June 15). Response to comment on “Carbon-Negative Biofuels from Low-Input High-Diversity Grassland Biomass.” Science Magazine‚ 316‚ 1567.
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In ecology‚ the competitive exclusion principle‚ sometimes referred to as Gause’s law of competitive exclusion or just Gause’s law‚ is a proposition which states that two species competing for the same resources cannot coexist if other ecological factors are the same. When one species has even the slightest advantage or edge over another‚ then the one with the advantage will dominate in the long term. One of the two competitors will always overcome the other‚ leading to either the extinction
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1. (a) State what ecologists mean by the following terms: (i) habitat ................................................................................................................ [1] (ii) niche ................................................................................................................ [1] (iii) ecosystem. ................................................................................................................ ..............................................
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