Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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


Consumers an organism that eats other organisms or organic matter instead of producing or obtaining nutrients from inorganic matter
Decomposers an organism that feeds by breaking down organic matter from dead organisms
Food Web a diagram that shows the feeding relationships between organisms in an ecosystem
Primary Succession succession that begins in an area that previously did not support
Secondary Succession the process by which one community replaces another community that has been partially or totally destroyed
Producers an organism that can make organic molecules from inorganic molecules; Basic food source in an ecosystem
NItrogen-fixing Bacteria bacteria that convert atmospheric nitrogen into ammonia
Food Chain a pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms
Pioneer Species a species that colonizes an uninhabited area and that starts an ecological cycle in which many other species become established
Created by: Kristinhoward17