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7 Cards in this Set

  • Front
  • Back
food chain
the sequence of who eats whom in a biological community.
food web
the network of all the inter-related food chains in a biological community
biologically important elements
Sulfur
Hydrogen
Carbon
Nitrogen
Oxygen
Phosphorus
nitrogen gas
molecule found in the atmosphere resulting from the denitrification of nitrate
(atmospheric nitrogen)
organic nitrogen
nitrogen found in an organic compound
(living things)
ammonium
results from the fixation/ deposition of atmosphere nitrogen and decomposition of organic nitrogen
nitrate
form of nitrogen most plants can use, resulting from the conversion