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Cycling of Matter
7.5C Cycling of Matter
| Term | Definition |
|---|---|
| Biomass | Material from living or recently living organisms composed of a mixture of organic molecules containing hydrogen, carbon, often nitrogen, and small quantities of other atoms. |
| Decay | The natural process or result of being slowly broken down or decomposed, chiefly by bacteria and fungi. |
| Decomposers | Organisms such as bacteria and fungi that break down the remains of dead plants and animals, without need for internal digestion. |
| Bacteria | A highly diverse group of single-celled, prokaryotic organisms. |
| Fungi | Microorganisms important as decomposers; widely distributed and can break down just about any type of organic matter. |
| Microorganisms | Organisms too small to be seen by the unaided human eye, such as bacteria and fungi. |
| Detritivore | An organism that feeds on and breaks down dead plant or animal matter; includes decomposers (bacteria and fungi) as well as larger organisms such as insects and worms, serving as primary consumers in a food chain. |
| Water Cycle | The movement of water through the atmosphere, the ground, bodies of water, and living things; the continuous movement of water above, on, and below Earth’s surface. |
| Carbon Cycle | The cycle by which carbon is exchanged among the soil, biosphere, lithosphere, hydrosphere, and atmosphere of the Earth. |
| Nitrogen Cycle | The process by which nitrogen is converted between its various chemical forms as it is exchanged among the soil, biosphere, lithosphere, and atmosphere of the Earth. |
Created by:
trauberk
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