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


Ecological Interactions

competition both species (or organisms within one species) need to use the same, limited resource. Negative-Negative
predation one species (predator) hunts and kills another (prey) for food. Positive-Negative
herbivory one species eats part or all of a plant species. Positive-Negative
parasitism one species makes its living off of another species. Positive-Negative
commensalism One species benefits from the interaction, but the other species is not affected Positive-Neutral
mutualism both species benefit from the interaction. Positive-positive
niche an organism's "job" in the environment: what it eats, where it lives, what it does, how it interacts, etc.
schooling behavior by some animals in which a large group moves together; thought to distract predators
primary succession sequence of communities that develops in an area starting as bare rock, with no soil yet.
secondary succession sequence of communities that develops after a disturbance wipes out part of the ecosystem, but some soil and other traces remain
exotic species a species that is not native to the area, but has been introduced from another area
invasive species a non-native species that does harm to the ecosystem
Created by: Jennifer_Clough