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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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


Characteristics of Life

Energy most of this comes from the sun
Homeostasis Example dogs pant to cool themselves in warm weather
Cell basic unit of structure and function
reproduction making more of your own kind; essential for the continuation of a species
growth and development process by which an organism transforms from inception to death
response reaction to a stimulus
adaptation The adjustment or changes in behavior, physiology, and structure of an organism to become more suited to an environment.
organization cells, tissues, organs, organ systems...shows how an organism is formed
homeostasis maintaining internal conditions despite external conditions
autotroph organism that makes its own food
natural selection organisms with favorable traits are more likely to survive and reproduce
asexual reproduction requires 1 parent to produce identical offspring
sexual reproduction requires 2 parents to produce genetically different offspring
heterotroph organism that must take in food to acquire the energy it needs
response example a plant's leaves turn toward the sun
heterotroph examples humans, animals
autotroph example plants
growth and development example infant, toddler, child, pre-teen, teenager, adult, senior
adaptation example a polar bear has white fur that allows it to blend in with it's snow/ice covered surroundings
Created by: SWMustangTeacher



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards