18.3 terms Word Scramble
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Term | Definition |
biomass | any organic material that has been produced in an ecosystem |
carnivore | an organism that eats animals |
consumer | an organism that eats other organisms or organic matter instead of producing it's own nutrients or obtaining nutrients from inorganic matter |
chemosynthesis | the production of carbohydrates through the use of energy from inorganic molecules instead of light |
decomposer | an organism that feeds by breaking down organic matter from dead organisms; ex. bacteria and fungi |
detritivore | a consumer that feeds on dead organisms or on the parts or wastes of other organisms |
food chain | the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms |
food web | a diagram that shows the feeding relationships among organisms in an ecosystem |
gross primary productivity | the rate at which organic matter is assimilated by plants and other producers during a period of time over a certain area |
herbivore | an organism that eats only plants |
net primary productivity | the rate at which biomass accumulates in an ecosystem |
omnivore | an organism that eats a variety of other organisms, including animals and plants |
producer | an organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem |
trophic level | an organisms relative position in a sequence of energy transfers in a food chain or food pyramid |
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