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 Unit Vocab

Vocabulary from our Evolution Unit

QuestionAnswer
evolution change in species over time
natural selection the environment chooses which traits are most adapted and will survive
overproduction producing more offspring than the environment can hold
variation having differences in the same trait
competition "fight" against others for food, shelter, mates and etc.
adaptive value the degree to which a trait "fits" an environment and is "chosen" for survival
survival of the fittest the organisms with traits that fit the environment will survive and pass on their traits
species organisms that are related and can reproduce to create fertile offspring
fossil record remains or imprints of organisms from the past that give us an idea of the order that different organisms lived
mutation a change in an organisms DNA that results in different traits
adaptation the trait that best "fits" the environment and is chosen for survival
antibiotic resistance bacteria that have mutated to be resistant to antibiotics (not affected by medicines)so they outcompete other bacteria.
organism similarities common chemical formation, embryo development and anatomy structures between various different organisms because they came from a common ancestor
homologous structures structures that are similar in seemingly unrelated organisms (ex. bone structure of limbs)that give reason to believe in a common ancestor
vestigial structures structures that an organism has that they do not need...probably left over from an ancestor
Created by: mbiata@rhnet.org
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