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passa unite 9
| Term | Definition |
|---|---|
| 1. ecosystem | A community of living organisms and their interrelated physical and chemical environment. |
| Environment: | The total of the surroundings (air, water, soil, vegetation, people, wildlife) influencing each living being’s existence, including physical, biological and all other factors; the surroundings of a plant or animals including other plants or animals, cli |
| Homeostasis: | The tendency for a system to remain in a state of equilibrium by resisting change. |
| Abiotic: | A nonliving factor or element (e.g., light, water, heat, rock, energy, mineral). |
| Biotic: | An environmental factor related to or produced by living organisms. |
| Biomes | A community of living organisms of a single major ecological region. |
| Niche (ecological): | The role played by an organism in an ecosystem; its food preferences, requirements for shelter, special behaviors and the timing of its activities (e.g., nocturnal, diurnal), interaction with other organisms and its habitat. |
| Acid deposition: | Precipitation with a pH less than 5.6 that forms in the atmosphere when certain pollutants mix with water vapor. |
| Stream order: | Energy and nutrient flow that increases as water moves toward the oceans (e.g., the smallest stream (primary) that ends when rivers flow into oceans). |
| Topographic map: | A representation of a region on a sufficient scale to show detail, selected man-made and natural features of a portion of the land surface including its cultura features; the portrayal of the position, relation, size, shape and elevation of the area. |
| Watershed: | The land area from which surface runoff drains into a stream, channel, lake, reservoir or other body of water; also called a drainage basin. |
| Hydrology: | The scientific study of the properties, distribution and effects of water on the earth’s surface, in the soil and underlying rocks and in the atmosphere. |
| Groundwater: | Water that infiltrates the soil and is located in underground reservoirs called aquifers. |
| Mitigation: | The policy of constructing or creating man-made habitats, such as wetlands, to replace those lost to development. |
| Lentic: | Relating to or living in still water |
| Lotic: | Lotic: Relating to or living in actively moving water. |
| closing the loop | A link in the circular chain of recycling events that promotes the use of products made with recycled materials. |
| non-renewable resources | Substances (e.g., oil, gas, coal, copper, gold) that, once used, cannot be replaced in this geological age |
| renewable | A naturally occurring raw material or form of energy that will be replenished through natural ecological cycles or sound management practices (e.g., the sun, wind, water, trees). |
| recycling | Collecting and reprocessing a resource or product to make into new products. |
| composting | The process of mixing decaying leaves, manure and other nutritive matter to improve and fertilize |
| evolution | A process of change that explains why what we see today is different from what existed in the past; it includes changes in the galaxies, stars, solar system, earth and life on earth. Biological evolution |
| extinction | The complete elimination of a species from the earth. |
| endangered species | A species that is in danger of extinction throughout all or a significant portion of its range. |
| equilibrium | The ability of an ecosystem to maintain stability among its biological resources (e.g., forest, fisheries, crops) so that there is a steady optimum yield. |
| sustainability | The ability to keep in existence or maintain. A sustainable ecosystem is one that can be maintained. |
| succession | The series of changes that occur in an ecosystem with the passing of time. |
| technology design process | Recognizing the problem, proposing a solution, implementing the solution, evaluating the solution and communicating the problem, design and solution. |
| technology education | The application of tools, materials, processes and systems to solve problems and extend human capabilities. |
| system | A group of related objects that work together to achieve a desired result. |
| physical technology | The ways that humans construct, manufacture and transport products. |
| tool | Any device used to extend human capability including computer-based tools. |
| commodities | Economic goods or products before they are processed and/or given a brand name, such as a product of agriculture. |
| transportation systems | A group of related parts that function together to perform a major task in any form of transportation. |
| Information technology | The technical means that humans create to store and transmit information. |
| Instructional technology | Any mechanical aid (including computer technology) used to assist in or enhance the process of teaching and learning. |
| Manufacturing technology | The ways that humans produce goods and products. |
| Biomedical technology | The application of health care theories to develop methods, products and tools to maintain or improve homeostasis. |
| Construction technology | The ways that humans build structures on sites. |
| Transportation technology | The physical ways humans move materials, goods and people. |
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21bender.jas
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