Bio I 4/10, 4/17: Question Preview (ID: 19453)

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physical or nonliving factor in an ecosystem
a) trophic level b) biotic factor c) abiotic factor d) biomass
living factors in an ecosystem.
a) Biotic factor b) Biosphere c) Abiotic factor d) Trophic level
the total amount of living tissue within a given trophic level
a) biotic factor b) biosphere c) biomass d) biosphere
the part of the Earth that supports life; includes the atmosphere, land and water
a) biosphere b) biomass c) biotic factor d) abiotic factor
each step in a food chain or food web
a) trophic level b) biosphere c) biomass d) biotic factor
relationhip in which 2 species live closely together
a) symbosis b) parasitism c) primary succession d) mutualism
Symbiotic relationship in which one organisms lives on or inside another organism and harms it
a) mutualism b) symbosis c) parasitisim d) secondary succession
symbiotic relationship in which both species benefit from the relationship
a) mutualism b) symbosis c) mutualism d) commensalism
symbiotic relationship in which one organism benefits and the other is neither helped nor harmed
a) parasitism b) symbiosis c) mutualism d) commensalism
Succession that occurs in an area in which no trace of a previous community in present; no soil
a) symbiosis b) primary succession c) secondary succession d) mutualism
type of successsion that occurs in an area that was only partially destroyed by disturabnces; there is soil
a) secondary succession b) primary succession c) mutualism d) parasitism
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