Home >> Flashcards >> Environmental Studies >> Matter and Energy: Ecosystem
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Definition
organisms that cannot make their own food examples: animals, humans 
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bacterium or fungus that consumes the bodies of dead organisms and other organic waste 
bacteria |
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organisms that make their own food from inorganic molecules and energy 
examples: plants, flowers, grass, some specific kinds of bacteria and fungi |
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plant-eater 
examples: rabbits |
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meat-eater 
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both plan and meat-eater 
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layer in the structure of feeding relationships in an ecosystem |
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an increasing concentration of a pollutant in organisms at higher trophic levels in a food web
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net work of food chains representing the feeding relationships among organisms in an ecosystem |
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| series of organisms that transfer food between trophic levels in an ecosystem |
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total amount of organic matter present in a trophic level
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diagram that shows the relative amounts of energy in different trophic levels in an ecosystem 
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movement of water into the atmosphere as it changes from a liquid to a gas |
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a plant that has colonies of nitrogen-fixing bacteria on its roots |
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evaporation of water from the leaves of plants 
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