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bio terms
bio terms
7
Biology
9th Grade
10/24/2013

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Term
food chain
Definition
A food chain is a series of steps in which organisms transfer energy by eating and being eaten.
Term
phytoplankton
Definition
phytoplankton is an aquatic organism that are mixtures of floating algae.
Term
food web
Definition
a food web is a network of complex interactions formed by the feeding relationships among the various organisms in a ecosystem.
Term
zooplankton
Definition
zooplankton is small free floating animals that form part of plankton
Term
trophic level
Definition
trophic level is each step in a food chain or food web.
Term
ecological pyramid
Definition
ecological pyramid is a pyramid that shows the relative amount of energy or matter contained within each trophic level in a given food chain or food web.
Term
biomass
Definition
is the total amount of living tissue within a given trophic level.
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