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


8th Ch 1 It's Alive

metabolism _ refers to all of the chemical activities that an organism's cells perform.
phospholipids Cell membranes are made of __
heredity _ is the passing of traits from one generation to the next.
photosynthesis _ is the process that changes the energy in sunlight to energy stored in food.
proteins __ are composed of amino acids.
ATP When food is broken down, energy is transferred to __ before the cell can use it.
producer An organism that makes its own food is called a __
cell A __ is a membrane-covered structure that contains all of the materials necessary for life.
decomposer An organism that gets its food by breaking down the nutrients in dead organisms or animal wastes is called a __
lipids Fats and oils are __ that store energy for an organism.
homeostasis Maintaining a stable internal environment is known as __
carbohydrates Simple and complex __ are made of compounds of sugars.
consumer __ obtains food by eating other organisms.
starch When iodine comes into contact with __, the iodine turns black.
complex carbohydrates When an organism has more sugar than it needs, its extra sugar may be stored in the form of
energy Food supplies the organism with __.
producers Most plants are __
instructions for making proteins DNA
asexual reproduction A single parent produces offspring identical to the parent
sexual reproduction Two parents produce offspring that share characteristics of both parents
stimulus A change in an organism’s environment that affects the organism is called ___.
70 All cells are made up of __% water
amino acids ___ make proteins (subunit of protein).
food, water, air, living space 4 basic necessities of life
cells, DNA, sense and respond, grow and develop, use energy, reproduce 6 characteristics of living things.
Created by: jen71