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.

Remove ads


Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

trade off   giving up one thing another  
deforestation   the act or result of cutting down or burning all the trees in a area  
reforestation   replanting trees in a area where they used to be  
global warning   worldwide trend of increasing overage temperature  
pollution   has a negative affect on the environment or its organisms  
host   where a parasite lives  
producer   use abiotic source and energy to make energy rich molecules  
abiotic   nonliving thing in the environment  
biotic   living thin in the environment  
scavenger   eat death or dying animal  
population   all the organism in a ecosystem that belongs to the same species  
parasite   harm the host  
renewable resource   that can be replaced or reuse by nature  
nonrenewable resources   cannot be reuse by nature  
autotrophic   organisms that takes its food from the environment  


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
Created by: Nathalycaba