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.

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

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
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

nitrogen cycle

QuestionAnswerFlap 3
Nitrates are converted into atmospheric nitrogen Denitrification Denitrifying bacteria
The release of nitrogen from dead materials and wastes Decomposition Bacteria and Fungi
How do animals obtain a supply of nitrogen? They must eat plant and/or animal protein. Animals are unable to synthesise proteins.
Bacteria convert atmospheric nitrogen into useable nitrogen compounds Nitrogen Fixation 1) Bacteria present in root nodules 2) Lightening 3) The Haber Process
The process of bacteria converting ammonium compounds into nitrates. Nitrification Nitrifying bacteria
Created by: packers03