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Chapter 12

Section 3

TermDefinition
food chain The steps of transfer of energy from primary producers through consumers.
trophic pyramid The pyramid-like relationship found in the pyramids of biomass, energy, and numbers of organisms in a food chain.
nutrient regeneration The release of nutrients from organic matter by decomposers.
net primary production The amount of organic carbon left over to fuel the food web after accounting for producer’s energetic needs.
chemical precipitation Chemical reactions which convert phosphate into insoluable phosphorus which settle to the sea floor.
trophic level Each of the steps in a food chain.
biomass The total mass of living organisms.
productivity The rate of primary production.
standing stock (standing crop) The total amount, or biomass, of an organism at a given time.
food web All of the interconnecting feeding relationships in a community.
detritus Particles of dead organic matter.
gross primary production The total amount of organic carbon manufactured by primary producers.
denitrification The conversion of fixed nitrogen back to nitrogen gas.
Created by: limaaara
 

 



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