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 (0)
Remaining cards (0)
Know (0)
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

Chapter 3

Interactions among living things

Natural selection A characteristic that makes an individual better suited to its environment may eventually become common in that species through a process
Adoptions the behaviors and physical characteristic that allow organisms to live successfully in their environments
Niche the role of an organism in its habitat,or how it makes its living
Competitions the struggle between organisms to survive as they attempt to use the same limited resource
Predation an interaction in which one organism kills another for food
Predator the organism that does the killing
Prey the organism that is killed
Symbiosis is a close relationship between two species that benefits at least one of the species
Mutelism a relationship in which both species benefit
Commensalism a relationship in which one species benefits and the other species is neither helped or harmed
Parasitism involves one organism living on or inside another organism and harming it
Parasite the organism that benefits
Host and the organism it lives on or in
Created by: nicholaswalker


Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then tap the card to flip it. If you knew the answer, tap the green Know box. Otherwise, tap the red Don't know box.

When you've placed seven or more cards in the Don't know box, tap "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just tap on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

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