Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
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

10thBIO-Chp 15.2 voc

Jorge The theory of eveloution Chapter 15.2

Adaptive radiation When an ancestral species evolves into an array of species to fit a number of diverse habitats.
Allelic Frequency The percentage of any specific allele in the gene pool.
Convergent Evolution A pattern of evolution in which distantly related organisms evolve similar traits.
Directional Selection Occurs when natural selection favors one of the extreme variations of a trait.
Disruptive Selection Individuals with either extreme of a traits variation are selected for.
Divergent Evolution The pattern of evolution in which species that once were similar to an ancestral species diverge.
Gene pool Picture all of the alleles of the populations genes as been together in a large pool.
Genetic drift Alteration of allelic frequencies by chance events.
Genetic equilibrium They refer to a population in which the frequency of alleles remains the same over generations.
Geographic isolation Occurs whenever a physical barrier divides a population.
Gradualism The idea that species originate through a gradual change of adapations.
Polyploid Any individuals or species with a multiple of the normal set of chromosomes
Punctuated equilibrium This hypothesis argues that speciation occurs relatively quickly
Reproductive isolation When formerly interbreeding organisms can no longer mate and produce fertile offsprings.
Speciation When members of similar populations no longer interbreed to produce fertile offspring within their natural environment.
Stabilizing selection Is natural selection that favors average individuals in a population.
Created by: asimien907
Popular Biology sets




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