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Energy & Ecosystems
LS 5 Matter & Energy through Ecosystems
| Term | Definition |
|---|---|
| abiotic | Nonliving, physical features of the environment |
| aquatic | Relating to water |
| atmosphere | Air surrounding Earth; is made up of gases, including 78% nitrogen, 21% oxygen, and 0.03% CO2 |
| biotic | Features of the environment that are alive or were once alive |
| climate | Average weather conditions of an area over time, including wind, temperature, and rainfall or other types of precipitation such as snow or sleet |
| consumer | An organism that obtains energy by feeding on other organisms |
| decomposer | An organism that breaks down wastes and dead organisms to obtain energy |
| ecosystem | All the living organisms that live in an area and the nonliving features of their environment |
| elevation | Height above sea level |
| energy pyramid | Model that shows the amount of energy available at each feeding level in an ecosystem |
| primary consumer | An organism that eats producers |
| producer | An organism that can make its own food |
| secondary consumer | An organism that eats primary consumers |
| terrestrial | Relating to the Earth, or to land |
| tertiary consumer | An organism that eats secondary consumers |
| topography | A description of the surface features of the land |
| carbon cycle | The process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere |
| cellular respiration | Process by which sugar molecules combine with oxygen to release energy |
| combustion | The process of burning something |
| condensation | The change of state/phase from a gas to a liquid |
| decomposition | The process of rotting or breaking down |
| evaporation | The change of state/phase from a liquid to a gas |
| nitrogen cycle | The transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere |
| photosynthesis | Process by which plants, algae, and phytoplankton, use light energy to convert water and carbon dioxide into oxygen and sugar (food); stores energy |
| precipitation | Any form of water that falls from clouds and reaches Earth's surface |
| transpiration | Evaporation of water from the leaves of a plant |
| water cycle | The continuous process by which water moves from Earth's surface to the atmosphere and back |
Created by:
mroble
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