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18.3 terms

TermDefinition
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
Created by: Addaleigh