MB Chapter 18, Section 4
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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| biogeochemical cycle | the circulation of substances through living organisms from or to the environment
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| groundwater | the water that is beneath the Earth's surface
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| water cycle | the continuous movement of water between the atmosphere, the land, and the oceans
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| transpiration | the process by which plants release water vapor into the air through stomata; also the release of water vapor into the air by other organisms
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| carbon cycle | the movement of carbon from the nonliving environment into living things and back
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| nitrogen cycle |
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| nitrogen fixation | the process by which gaseous nitrogen is converted into ammonia, a compound that organisms can use to make amino acids and other nitrogen-containing organic molecules
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| nitrogen-fixing bacteria | bacteria that convert atmospheric nitrogen into ammonia
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| ammonification | the formation of ammonia compounds in the soil by the action of bacteria on decaying matter
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| nitrification | the process by which nitrites and nitrates are produced by bacteria in the soil
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| denitrification | the liberation of nitrogen from nitrogen-containing compounds by bacteria in the soil
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| phosphorus cycle | the cyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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