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Pre-Test
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1
The____________ is the area where organisms interact with each other and with the abiotic environment.
A)community
B)biosphere
C)niche
D)ecosystem
2
The role of an organism within the ecosystem is its ________.
A)niche
B)habitat
C)food chain
D)trophic level
3
All the organisms that feed at a particular link in a food chain are called a ____________.
A)trophic level
B)food web
C)pyramid of numbers
D)detrital food chain
4
____________ moves water from surface supplies to the atmosphere in the hydrologic cycle.
A)Precipitation
B)Gravity
C)Condensation
D)Evaporation
5
Global warming, caused by a buildup of greenhouse gases, will likely have what effect in the future?
A)greater occurrence of droughts
B)reduced agricultural yields
C)glacier melt and rising sea levels
D)All of these are correct.





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