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Eosystems and Communities


Biology Vocabulary

1weather _____warm limate zone that receives direct or nearly diret sunlight year round
2climate _____biological incluence on organisms in an ecosystem
3greenhouse effect _____symbiotic relationship in which one organism lives in or on another organism (the host) and consequently harms it
4polar zone _____full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions
5temperate zone _____ecological rule that states that no two species can occupy the same exact niche in the same habitat at the same time
6tropical zone _____condition of Earth's atmosphere at a particular time and place
7biotic factor _____succession that occurs on surfaces where no soil exists
8abiotic factor _____the area where an organism lives, including the biotic and abiotic factors that affect it"
9habitat _____natural situation in a which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases"
10niche _____physical, or nonliving, factor that shapes an ecosystem"
11resource _____moderate climate zone between the polar zones and the tropics
12competitive exlusion principle _____gradual change in living communities that follows a disturbance
13predation _____symbiotic relationship in which both species benefit from the relationship
14symbiosis _____symbiotic relationship in which one member of the associations benefits and the other is neither helped nor harmed
15mutualism _____any necessity life, such as water, nutrients, light, food, or space"
16commensalism _____cold climate zone where the sun's rays strike Earth at a very low angle
17parasitism _____succession following a disturbance that destroys a community without destroying the soil
18ecological succession _____relationship in which two species live closely together
19primary succession _____first species to populate an area during primary succession
20pioneer species _____interaction in whih one organism captures and feeds on another organism
21secondary succession _____average, year-after-year conditions of temperature and particular region"

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