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


A flower bred from two different species is said to be this hybrid
The thin part of a leaf, or what you cut off your grass when moving blade
Tissue found in the tip of our nose and in our knees cartilage
Adjective for a plant that grows year after year without replanting perennial
The cellular process of converting nutrients into energy respiration
This organism is part fungus and part algae lichen
Ferns have these plant elements that algae do not roots
Allele hidden when a dominant allele is displayed recessive allele
Part of your eye tat sends images to the brain through the optic nerve retina
Invertebrate animals lack this important thing a backbone
Created by: Arlinesd75