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 Vocab

AP Bio

TermDefinition
Divergent Evolution accumulation of differences between two groups until they are a new species
Convergent Evolution the independent evolution of similar features in different lineages
homologous structures structures in organisms that are similar because of common ancestry, may not share similar function
vestigial structures remnants of features that served a function in the organism's ancestors
analogous structures share similar function, but not common ancestry
two ways variation comes reproduction and mutations
directional selection graph shifts in one direction
stabilizing selection middle higher fitness
disruptive selection left and right
founder effect subgroups of original population relocated
bottleneck population decrease for at least one generation
hardy-weinberg conditions large population; no migration; no mutation; random mating; no natural selection
gene pool genes in population
alele frequency how common an allele is
homologous structures similar structures; common ancestry
paleontology fossils shows change in a species over time
biogeography similar species are found in similar ecosystems around the world
morphology comparing structures (analogous and homologous)
biochemical of molecular similarities in gene sequences proteins DNA
speciation new species formed
species make fertile offspring
geographic isolation barriers prevent mating
ecological isolation different habitats same region
temporal isolation different mating times
behavioral isolation different mating rituals
mechanical isolation morphological differences
gamete isolation sperm and egg don't recognize each other
hybrid inviability embryo can't develop
hybrid sterility/infertility baby not fertile
hybrid breakdown each generation less fertility
microevolution changing of allele frequencies in a population over time
macroevolution patterns of change over geologic time; determine phylogeny
gradualism species are always slowly evolving
punctuated equilibrium periods of massive evolution followed by periods with little to no evolution
adaptive radiation the diversification of different organisms into different forms filling ecological niches
Created by: 3j0mk1
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