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


plant and animal

Plant growth toward a stimulus is a _____ Positive tropism
Anything that causes a response in an organism is a ______ stimulus
When you search for food, you are responding to an _____ internal stimulus
A change in plant growth in response to the direction of light is called phototropism
The green pigment in a plant's leaves is called chlorophyll
Plants use the energy from sunlight to make food
Anything that causes a response in an organism is called a _____ stimulus
plant growth is response to a stimulus is called a tropism
when a growth of a plant changes direction in response to gravity, the change is called ___ gravitropism
A shoot that grows out of the ground shows both positive phototropism and negative gravitropism
Sensory receptors in the ____ cochlea
Receptors that can change light into impulses are found in the retina
Created by: nonniep