Save
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

Evolution Vocabulary

Use the cards to study evolution terms

TermDefinition
adaptation physical feature or behavior which increases an organism's chance of survival.
Theory of Natural Selection/natural selection Theory which states that organisms have variation and factors in the environment favor certain variations. As a result, organisms with the favorable variations, survive, and pass on traits.
Homologous structures Structures which are similar, but function differently in different environments. Produced by adaptive radiation.
adaptive radiation Occurs when organisms have a common ancestor, but look different because organisms live in different environments. Produces homologous structures
Analogous structures Structures which have the same function, but have a different structure. Occur because organisms live in similar environments. Result of convergent evolution.
Vestigial structures An organ or structure which is present in an organism, but has no known purpose. Ex: Appendix
Origin of Species Book by Darwin which outlined his ideas which led to the Theory of Natural Selection.
Galapagos Islands Location of Darwin's research which allowed him to study species and adaptations of finches.
Convergent evolution Evolution which occurs when organisms resemble each other due to habitat rather than common ancestry. Produces analogous structures.
Coevolution Occurs which organisms evolve together like bees and flowers
Directional selection Type of selection where a variant of one extreme is favored. Shifts the population towards one trait.
Disruptive selection Type of selection where both extremes are favored while the intermediate phenotype is not favored.
Stabilizing selection Type of selection where the extreme variants are not favored. Reduces variation.
Artificial selection Occurs when humans choose which organisms to breed to produce specific traits.
Transitional fossils Types of fossils which show gradual changes over long periods of time because natural selection is favoring certain variations.
Speciation Formation of new species
Fitness Ability to survive and reproduce
Theory of Acquired Traits Theory which states that organisms develop adaptations through use and disuse and then pass those traits onto offspring.
Lammarck Developed theory of acquired traits
Darwin Developed the theory of natural selection
paradigm Set of assumptions we assume to be true and use to interpret observations.
Created by: jenniyauck
Popular Biology sets

 

 



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