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

Bio Evolution Vocab

TermDefinition
complementary base pairing either of the nucleotide bases linked by a hydrogen bond on opposite strands of DNA
convergent evolution organisms not closely related, independently evolve similar traits as a result of having to adapt to similar environments
divergent evolution is the process of tracing back two or more species to their common ancestor.
deoxyribonucleic acid a self-replicating material present in nearly all living organisms as the main constituent of chromosomes
double helix a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.
evolutionary change a gradual change in the characteristics of a population of animals or plants over successive generations
gene flow is the transfer of alleles or genes from one population to another.
genetic drift variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce
gradual change model species are generally morpholgically stable, changing little for millions of years.
mutation, natural selection is the differential survival and reproduction of individuals due to differences in phenotype
nitrogenous base a nitrogen-containing molecule that has the same chemical properties as a base
non-random mating occurs when the probability that two individuals in a population will mate is not the same for all possible pairs of individuals.
punctuated equilibrium model The theory that new species evolve suddenly over brief periods of time, followed by longer periods during which there is no genetic change
speciation the formation of new and distinct species in the course of evolution.
sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA
Created by: rc.squad
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