Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
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

passa unite 9

TermDefinition
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.
Created by: 21bender.jas