Ecosystems Populations Cycles Human Impact 200 200 200 200 200 400 400 400 400 400 600 600 600 600 600 800 800 800 800 800 1000 1000 1000 1000 1000 Sustainability The original source of energy for all ecosytems What is the Sun? A diagram showing the flow of energy through an ecosystem What is a food web? All species that live in an area. What is a community? The amount of energy lost at each link in a food chain. What is 90%? Organisms that consume producers and consumers. What are omnivores? These structures, most famous in the Egyptian desert, can be used to represent populations. What are pyramids? Organisms within a given population will enter into this for food and partners. What is competition? The maximum population that a given area can sustain is referred to as this. What is the carrying capacity? Daily Double The two types of competition. What are interspecific and intraspecific? A hurricane is an example of a population limiting event of this kind. What is density independent? The two cycles studied in this unit. What are nitrogen and carbon? Carbon dioxide is absorbed from the atmosphere in plants and transformed into this carbon containing molecule. What is glucose? These bacteria, often found in root nodules are sources of nitrogen for the plants they are attached to. What are nitrogen fixing bacteria? The Earth is this type of system. What is closed? Most of the petroleum reserves result from carbon deposits of this era. What is the carboniferous period? The result of excess CO2 in the atmosphere. What is global warming? The effect of nitrogen overload in the atmosphere. What is acid rain? The effect of nitrogen overload in an aquatic ecosystem. What is an algal bloom or eutrophication? An area used to examine a portion of an ecosystem. What is a transect? The impact of human activities has an effect on the variety of species or the ‘this’ on Earth? What is biodiversity? This is a calculation of how much surface area is needed to support the habits and activities of individuals. What is the ecological footprint? This is a driving force behind decision made effecting the environment. What is the economy? An accord signed by many countries in an attempt to reduce CO2 and other greenhouse gas emissions. What is the Kyoto Accord? Daily Double Name Canada’s current minister of the Environment. Who is The Honourable Rona Ambrose? The country with the largest ecological footprint. What is the United States?
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