Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Unit 7 - Ap Bio

Unit 7 Packet

TermDefinition
Natural Selection A process by which organisms with favorable traits are more likely to survive and reproduce.
Fitness The ability of an organism to survive and produce offspring.
Adaptation A heritable trait that improves survival or reproduction.
Gene Flow Movement of alleles from one population to another.
Genetic Drift Random changes in allele frequencies in a small population. These changes are not driven by natural selection, but by chance
Bottleneck Effect and Founder Effect (Two forms of genetic drift) Bottleneck: large pop drastically reduced in size, surviving population may not represent original genetic diversity Founder: new pop started by a small number of individuals, new group may carry only a fraction of original pop's genetic variation
Artificial Selection Breeding by humans to enhance desired traits in other organisms.
Vestigial Structure A physical structure in organisms that has lost its original function through evolution.
Phylogenetic Tree A branching diagram that shows evolutionary relationships.
Hardy-Weinberg Equilibrium A model predicting that allele frequencies will remain constant in the absence of evolutionary influences.
Created by: efffa
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards