Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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
remaining cards
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:
restart all cards
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

Ch. 20 Earth's Ecosy

The earth's ecosystems

abiotic describes nonliving factors in the environment
biome large region with specific climates, certain plants, and animals
savanna tropical grassland biome with scattered clumps of trees
desert hot/dry biome with organisms in high temperatures without rains
tundra far-northern biome characterized by long, cold winters; permafrost
permafrost permanently frozen ground below the soil surface in the arctic tundra
marine describes an ecosystem based on salty water
phytoplankton microscopic photosynthetic organism that floats near the surface
zooplankton protozoa that consume, form the base of the ocean's food web
estuary area where fresh water from streams/rivers spills into the ocean
tributary a small stream or river that flows into a larger one
littoral zone the zone of a lake/pond closest to the edge of the land
open-water zone from the littoral zone across the top only as deep as light reaches
deep-water zone zone of a lake/pond below the open-water zone with no light
wetland area of land where water level is near or above ground
marsh treeless wetland ecosystem with plants as cattails and rushes grow
swamp a wetland ecosystem in which trees and vines grow
Created by: swhite2015