what shapes an ecosystem
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| the biological influences on organisms within an ecosystem | biotic factors
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| physical, or nonliving factors that shape ecosystems | abiotic factors
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| together, _______ and __________ factors determine the survival and growth of an organism and the productivity of the ecosystem in which the organism lives | biotic abiotic
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| the area where an organism lives | habitat
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| full range of physical and biological conditions in which an organism lives and the way the organism uses those conditions | niche
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| community interactions, such as _____, ______ and various forms of ______, can powerfully affect and ecosystem | competition, predation, symbiosis
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| any necessity of life | resource
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| no two species can occupy the same niche in the same habitat at the same time | competitive exclusion principle
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| an interaction in which one organism captures and feeds on another organism | predation
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| any relationship where two species live closely | symbiosis
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| both species benefit from the symbiotic relationship | mutualism
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| symbiosis where one organism benefits and the other is neither helped nor harmed | commensalism
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| symbiosis where one organism lives on or inside another and harms it | parasitism
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| t/f ecosystems are constantly changing in response to natural and human disturbances | true
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| true/false as an ecosystem changes, older inhabitants gradually die out and new organisms move in, causing further changes in the community | true
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| the series of predictable changes that occurs in a community over time is called _______ _________ | ecological succession
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| on land, succession that occurs on surfaces where on soil exists is called_________ ________ | primary succession
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| the first species to populate an area | pioneer species
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| when a disturbance of se kind changes an existing community w/o removing the soil | SECONDARY SUCCESSION
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Created by:
ebony5407