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ecosystems

study for yearly exams

TermDefinition
abiotic non-living parts of ecosystems.
biotic living parts of ecosystems.
consumer cannot create own energy. relies on other organisms for energy.
producer can produce their own energy via photosynthesis.
decomposer break down dead organisms, faeces and waste, and returns the matter to the environment.
food web a way to represent the transfer of energy as organisms feed off each other. made of many food chains.
biomass pyramid a way to represent the total amount of mass at each consumer level.
biomagnification increasing amounts of pollutants being digested as you move up a food chain.
deforestation clearing of land by removing large numbers of trees.
conservation saving or protecting environments for future, eg national parks.
sustainability balancing our need for resources with the need to protect and conserve the environment.
Created by: angiegatt
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