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23 Cards in this Set
- Front
- Back
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ecosystem
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a biological community of interacting organisms and their physical environment
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community
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a group of interdependent organisms of different species growing or living together in a specified habitat
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biomass
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the total mass of organisms in a given area or volume
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ecological pyramid
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a graphical representation designed to show the biomass or biomass productivity at each trophic level in a given ecosystem
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trophic level
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each of several hierarchical levels in an ecosystem
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food web
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network of complex interactions formed by the feeding relationships amend the carious organisms in an ecosystem
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ecology
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scientific study of interactions among organisms and between organisms and their enviroment
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biosphere
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total amount of living tissue within a given trophic level
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species
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a group of similar organisms that can breed and produce fertile offspring
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population
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a group of individuals of the same species that live in the same area
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decomposer
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an organism that decomposes organic material
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detritivore
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an animal that feeds on dead organic material
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omnivore
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an animal or person that eats food of both plant and animal origin
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herbivore
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an animal that feeds on plants
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consumer
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a person or thing that eats or uses something
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heterotroph
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an organism deriving its nutritional requirements from complex organic substances
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chemosynthesis
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the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight
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carnivore
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an animal that feeds on flesh
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photosynthesis
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the process by which green plants use sunlight to synthesize foods from carbon dioxide and water
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producer
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a person or thing that makes or causes something
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autotroph
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an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
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biome
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a large naturally occurring community of flora and fauna occupy a major habitat
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food chain
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series of steps in an ecosystem in which organisms transfer energy be eating and being eaten
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