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

Chapter 10

Principles of Evolution

TermDefinition
evolution the process of biological change by which descendants come to differ from their ancestors
species a group of organisms so similar to one another that they can reproduce and have fertile offspring
fossil traces of organisms that existed in the past
catastrophism this theory states that natural disasters such as floods and volcanic eruptions have happened often during Earth's long history
gradualism slow changes over a long period of time
uniformitarianism this theory states that the geologic processes that shape Earth are uniform through time
variation the difference in a physical traits of an individual from those of other individuals in the group to which it belongs
adaptation a feature that allows an organism to better survive in its environment
artificial selection the process by which humans change a species by breeding it for certain traits
heritability the ability of a trait to be passed down from one generation to the next
natural selection a mechanism by which individuals that have inherited beneficial adaptation produce more offspring on average than do other individuals
population all the individuals of a species that live in an area
fitness a measure of the ability to survive and produce more offspring relative to other members of the population in a given environment
biogeography the study of the distribution of organisms around the world
homologous structure features that are similar in structure but appear in different organisms and have different functions
analogous structure structures that perform a similar function but are not similar in origin
vestigial structure are remnants or organs or structures that had a function in an early ancestor
paleontology the study of fossils or extinct organisms
Created by: tuohybio1415