Biology Ch 18.4 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
biogeochemical cycle | the circulation of substances through living organisms from or to the environment |
ground water | the water that is beneath the Earth's surface |
water cycle | the continuous movement of water between the atmosphere, the land, and the oceans |
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 |
carbon cycle | the movement of carbon from the nonliving environment into living things and back |
nitrogen cycle | the process in which nitrogen circulates among the air, soil, water, plants, and animals in an ecosystem |
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 |
nitrogen-fixing bacteria | bacteria that convert atmospheric nitrogen into ammonia |
ammonification | the formation of ammonia compounds in the soil by the action of bacteria on decaying matter |
nitrification | the process by which nitrites and nitrates are produced by bacteria in the soil |
denitrification | the liberation of nitrogen from nitrogen-containing compounds by bacteria in the soil |
phosphorus cycle | the cyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment |
Created by:
SchmidtE20
Popular Biology sets