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iWork Active Vocabulary

Bethany Betancourt

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Across
4.The movement of carbon from the nonliving environment into living things and back. (2 Words)
6.The production of carbohydrates through the use of energy from inorganic molecules instead of light.
7.An organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem.
9.The cyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment. (2 Words)
10.An organism that eats only plants.
12.The circulation of substances through living organisms from or to the environment. (2 Words)
19.The water that is beneath the Earth's surface.
22.A bacterium that converts atmospheric nitrogen into ammonia. (2 Words)
23.The process by which gaseous nitrogen is converted into nitrates, compounds that organisms can use to make amino acids and other nitrogen-containing organic molecules. (2 Words)
24.An organism that eats a variety of other organisms, including animals and plants.
25.The formation of ammonia compounds in the soil by the action of bacteria on decaying matter.
26.The process by which nitrites and nitrates are produced by bacteria in the soil.
Down
1.An organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic sources.
2.The rate at which organic matter is assimilated by plants and other producers during a period of time over a certain area. (3 Words)
3.A diagram that shows the feeding relationships among organisms in an ecosystem. (2 Words)
5.The rate at which biomass accumulates in an ecosystem. (3 Words)
8.An organism that eats animals.
11.The pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms. (2 Words)
13.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.
14.An organism that feeds by breaking down organic matter from dead organisms; examples include bacteria and fungi.
15.Any organic material that has been produced in an ecosystem.
16.The continuous movement of water between the atmosphere, the land, and the oceans. (2 Words)
17.The process in which nitrogen circulates among the air, soil, water, plants, and animals in an ecosystem. (2 Words)
18.A consumer that feeds on dead organisms or on the parts or wastes of other organisms.
20.The liberation of nitrogen from nitrogen-containing compounds by bacteria in the soil.
21.An organism's relative position in a sequence of energy transfers in a food chain or food pyramid, examples include producers and primary, secondary, and tertiary consumers. (2 Words)

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