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.

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


FOSSILS sils fossils are the remains an imprint or a trace of life from an earlier time. there are five types of fossils
HOMOLOGOUS STRUCTURES homologous structures are body parts with deffering functions but surprisingly similar structures these similar structures indicate a similar origin the difference in function is wha makes their similarity so surprising.
vestigial structures body parts that have little or no function and are usually greatly reduced in size. these vestigial structures show a relationship to creatures that had functioning versions of these functions
DNA scientists compare dna from living creatures to find similarities similarities in dna show evolutionary relationships.
mineralized fossils. a piece of wood or bone replaced by minerals
imprint fossils an imprint of a leaf feather or organsm in rock
cast fossils a cast made of minerals that filled in hollows of an animal
frozen fossils an organism frozen in ice
fossils in amber an insect or othe organism trapped in plant resin
Created by: FRANK WEST