CH 24 Review Questions
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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A set of guilds is referred to as | Community
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All of the following are free-living, nitrogen-fixing bacteria except: | Rhizobium
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Which of the following is not found in the atmosphere? | Phosphorus
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Which of the following zones is present only in oceans? | Abyssal zone
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Most marine microorganisms are present in the: | Littoral zone
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Which of the follwing is a category A agent? | Bacillus anthracis
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Category B agents include: | Vibrio cholerae
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Which of the following is the fourth most abundant element in the universe? | Carbon
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The process by which nitrate is reduced to nitrogen is called: | Denitrification
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Eutrophication is a term used in the | Phosphorus cycle
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A region or regions of the earth populated by living organisms is referred to as | biosphere
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the physical location where organisms are found is called a | habitat
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the conversion of Carbon Dioxide (CO2) to organic molecules is called | carbon fixation
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Cholera is considered a category what disease? | B
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Rhizobium is involved in which cycle | Nitrogen
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Populations of mircoorganisms that perform linked metabolic activities | Guilds
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Physical locations where organisms are found | Habitats
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Regions of the earth populated by living organisms | Biospheres
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Consists of the sediments at the bottom of a lake | Benthic zone
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deeper water located below the limnetic zone | Profundal zone
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upper layer of water away from the shore | limnetic zone
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