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

Ch. 1 7th Grade

Classifying & Exploring Life

cell smallest unit of life
homeostasis ability to maintain steady internal conditions when outside conditions change
multicellular made of two or more cells
organism thing that has all the characteristics of life
unicellular made of one cell
binomial nomenclature naming system that gives each organism a two-word scientific name
cladogram branched diagram that shows the relationships among organisms
dichotomous key series of descriptions arranged in pairs that can be used to identify an unknown organism
genus group of similar species
kingdom classification category that ranks above phylum and below domain
species group of organisms that have similar traits and produce fertile offspring
atom building block of matter composed of protons, neutrons, and electrons
compound microscope uses more than one lens to magnify an image
electron microscope use a magnetic field to focus a beam of electrons through an object or onto an object's surface
identify to determine the characteristics of a person or thing
light microscope uses light and lenses to enlarge an image of an object
Created by: SSmith01