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

LE Topic 5 Evolution

NYS Living Environment Curriculum: Evolution

QuestionAnswer
Evolution a process by which species have changed overtime
Extinction occurs when ALL members of a species die out
Fossil record layers of rock that show how species have changed over geologic time. The oldest specimens are farthest down
Genetic Variation normal differences found among members of a species. Everyone’s DNA is different.
Mutation a change in the DNA that may alter the protein that is eventually made
Natural selection/Survival of the Fittest organisms with beneficial differences in their DNA survive better, reproduce better and pass their genes on to future generations
Overproduction(Overpopulation) occurs when a species’ population grows larger than its carrying capacity.
Competition occurs when there’s not enough resources so species have to fight for food and shelter
Theory an explanation that has many experiments and data to back it up
Created by: etucci