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What is the water cycle?
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What is the respective importance of water, carbon, and nitrogen for the living beings?
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What are biogeochemical cycles?
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What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids?
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What are the destinations of the organic material fabricated by the producers?
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What are the factors that for influencing photosynthesis also interfere with the gross primary productivity?
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What is the gross primary production of an ecosystem? How does GPP relate to photosynthesis?
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Can the amount of available energy in a given tropic level to be larger than the available energy in inferior tropic levels? What does that condition means to the conformation of the energy pyramids?
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Into which type of energy is the light used in photosynthesis transformed.
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What do energy pyramids represent?
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What is dry mass?
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What do biomass pyramids represent?
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In the short range what will happen to the levels above and below a population of secondary consumers of a numeric pyramid if a large number of individuals from this population dies?
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In a numeric pyramid, is it possible the base to be smaller than the other levels?
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In a numeric pyramid to which tropic level does the base always refer?
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What do numeric pyramids represent?
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What are the three main types of tropic pyramids studied in Ecology?
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What is the difference between the concepts of food chain and food web?
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What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
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What are tropic levels? How many tropic levels can a food chain have?
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