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Details Title: Matter and Energy: Ecosystem Description: Chapter 4 Vocab/Concepts Total Flash Cards: 15 Created: 11/12/2007 07:47:25	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term consumers Definition organisms that cannot make their own food    examples: animals, humans     Term decomposers Definition bacterium or fungus that consumes the bodies of dead organisms and other organic waste   bacteria     Term producers Definition organisms that make their own food from inorganic molecules and energy   examples:  plants, flowers, grass, some specific kinds of bacteria and fungi    Term herbivore Definition plant-eater   examples: rabbits Term carnivore Definition meat-eater   Term omnivore Definition both plan and meat-eater   Term trophic level Definition layer in the structure of feeding relationships in an ecosystem     Term biological magnification Definition an increasing concentration of a pollutant in organisms at higher trophic levels in a food web Term food web Definition net work of food chains representing the feeding relationships among organisms in an ecosystem     Term food chain Definition series of organisms that transfer food between trophic levels in an ecosystem Term biomass Definition total amount of organic matter present in a trophic level Term ecological pyramid Definition diagram that shows the relative amounts of energy in different trophic levels in an ecosystem   Term evaporation Definition movement of water into the atmosphere as it changes from a liquid to a gas     Term legumes Definition a plant that has colonies of nitrogen-fixing bacteria on its roots     Term transpiration Definition evaporation of water from the leaves of plants