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7 Cards in this Set
- Front
- Back
food chain |
a series of steps in which transfer energy by eating or being eaten |
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phytoplankton |
a primary producer that is floating algae |
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food web |
network of feeding interactions
*system of food chains* |
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zooplankton |
a diverse, small group of swimming animals
*usually the base of an aquatic food web/chain* |
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trophic level |
each different step a food chain/web
*first line is made up of only primary producers* |
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ecological pyramids |
show the relative amount of energy or matter contained within each trophic level in a given food chain or food web
*pyramids of biomass, energy, and numbers* |
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biomass |
the total amount of living tissue within a given trophic level
*usually measured in grams of organic mass per unit area* |