Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

Ch. 17

Did You Study?

Adaptive Radiation When one lineage rapidly diversifies into several new species
Evolutionary Tree A diagram that shows which physical traits are shared in one species to another
Founder Effect When a group of species within a population decide to make their own population
Genetic Equillibrium When the allele frequency for a trait doesn't change in a gene pool
Microevolution When the allele frequency for a trait does change in a gene pool
Phylogeny The evolutionary history of a species
Allele Frequency The amount of an allele that a population has
Bottleneck A great reduction in population size
Cladogram A branching diagram that tells how different species are related
Coevolution When the evolution of one species affects the evolution of another
Derived Trait A Character present in a group under consideration , but not in any of the group's ancestors
Exaptation When a species adapts for a whole different reason
Extinct A species that has died away because it couldn't adapt to its environment
Gene Flow The movement of alleles between populations
Gene Pool All of the Alleles of genes within a population
Genetic Drift Change of an allele's frequency over time
Inbreeding Breeding between close relatives
Lethal Mutation A mutation that changes phenotype to a point that leads to death
Macroevolution Evolution on a larger scale
Population A large group of a species that live in a certain area that breed with each other
Reproductive Isolation The end of gene flow between populations
Sexual Selection A form of natural selection where the species with the best traits are chosen to reproduce with
Speciation A process in which new species arise through isolation from a larger population
Stasis When a lineage that has persisted for million of years has had very little evolutionary pattern
Created by: moiz.yousufi86



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:
restart all cards