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18 Cards in this Set

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Breaks down and obtains enegy from dead organic matter
decomposers
Obtains energy from the food it consumes
Concumer
Use sun for energy
Plankton
All of the organisms about the third trophic level, eats animals.
Carnivors
Relies on onther organisms for its energy and food supply
Heterotrophs
Can produce food
Autotrophs
Obtains energy by eating both plants and animals
Omnivore
Group of organisms whore energy souce is the same number of steps away from the sun.
Trophic Level
Study of how organisms fit into their enviornment.
Ecology.
The organisms that live in a particular place
Community
Organisms in second trphic level, obtains energy by eating only plants.
Herbnivore
Major biological communities that occure over wide areas on land
Biomes
Ability of gases to retain heat, and in doing so warming the eaths atmosphere.
Green house effect
Contain photosynthetic organisms that are the bae of aquatic food webs.
Producer
Collection of organisms and their physical environment.
Ecosystem
Physical location of a community
Habitat
Measure of hte number of species living in a habitat.
Diversity.
Process of conveting nitrogen gas into ammonia
Nitrogen Fixation