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Ch. 5 Science vocab

Definitionterm
process by which plants use sunlight to make food photosynthesis
organism that eats other animals instead of making their own food consumer
process of breaking down carbohydrates to yield energy cellular respiration
a sequence in which energy is transferred from one organism to the next as each animal eats another animal food chain
shows many feeding relationships that are possible in a ecosystem food web
one of the steps in a food chain trophic level
an organism that breaks down dead plant and animal material for its food decomposer
a continuous movement of carbon atoms between the atmosphere, oceans, land, and living organisms carbon cycle
microorganisms that can convert atmospheric nitrogen gas to usable form nitrogen- fixing bacteria
process where nitrogen is converted into different chemical forms as it moves through the atmosphere , soil, and living organisms nitrogen cycle
The movement of phosphorus through earth's ecosystems phosphorus cycle
the process by which the mix of species and habitat in a area changes over time ecological succession
process where a community of organisms begins to colonize and completely barren area primary succession
process where disturbed area where some soil and life forms still exist and recolonized by plants and animals following a disturbance like fire flood or logging secondary succession
first organisms to colonize a newly created environment pioneer speceies
the final, stable stage of an ecosystem reached through the process of ecological succession, where the plant and animal species present are well-adapted to the existing environmental conditions and experience minimal change over time climax community
a organism that can make organic molecules from inorganic moleccules producers
Created by: Avery J
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