Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

Biology vocab

TermDefinition
Evolution Change in a kind of organism over the process by which modern organisms have descended from ancient organisms
Theory Well- tested explanation that unifies a broad range of observations
Fossil Preserved remains or evidence of an ancient organism
Natural selection Process by which individuals that are better suited to their environment t and reproduce successfully; also called the survival of the fittest
Artificial selection Selection by humans for breeding of useful traits from the natural variation among different organisms
Fitness Ability of an organism to survive and reproduce in its environment
Adaptation Inherited characteristics that increases an organisms chance of survival
Survival of the fittest Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection
Homologous structure Structured that have different mature forms in different organisms but develop from the same embryonic tissues
Common descent Principle that all living things have a common ancestor
Created by: reigere962