Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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 email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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

Coach Gibbs

Chapter 8.5 Vocab Terms

Tropism A plant's growth response toward or away from a stimulus.
Hormone Affects how the plant grows and develops.
Auxin Important plant hormone that speeds up the rate at which a plant's cells grow.
Photoperiodism A plant's response to seasonal changes in length of night and day.
Short-Day Plants When the nights are longer than a critical length.
Long-Day Plant When nights are shorter than a critical length.
Critical Night Length The number of hours of darkness that determines whether or not a plant will flower.
Day-Neutral Length Their flowering cycle isn't sensitive to periods of light and dark.
Dormancy A period when an organism's growth or activity stops.
Annuals Flowering plants that complete a life cycle within one growing season.
Biennails Angiosperms that complete their life cycle in two years.
Perennials Flowering plants that live for more than two years.
Created by: S732596