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7 Cards in this Set

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BIOMASS
total mass of living tissue within a given trophic level
AUTOTROPHS
only plants, some algae, and certain bacteria can capture energy from sunlight or chemicals and use that energy to produce food
FOOD WEB
network of complex interactions formed by the feeding relationships among the various organisms in the ecosystem
ECOLOGICAL PYRAMID
diagramthat shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web
TROPHIC LEVEL
each step in a food chain or food web
DECOMPOSER
braeks down organic matter
FOOD CHAIN
series of steps in which organisms transfer energy by eating and being eaten