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

Topic 4

Mr Camp - Topic 4

TermDefinition
adaptive value any trait that helps an organism survive and reproduce under a given set of environmental conditions
evolution process in which a species changes over time
extinction the disappearance of all members of a species from Earth due to their inability to adapt to a changing environment
fossil record a collection of fossils used to represents Earth's history
genetic variation differences between organisms of a species, increases chance of the individual and species surviving environmental change
geologic time Earth's history as revealed by layers of rock
natural selection process by which the organisms that are best adapted to a specific environment survive and produce more offspring than organisms that are not as well adapted
overproduction the potential for a species to increase its numbers beyond the area's carrying capacity
theory an explanation, supported by many observations and/or experiments, that can be used to accurately explain related occurrences(events)
Created by: mrcamp