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

Quiz 12 Study Stack

QuestionAnswer
An adaptation is a hereditary characteristic that helps an organism survive and reproduce
A species is a group of organisms that can mate with one another to produce fertile offspring.
Evolution is the process by which populations accumulate inherited changes over time.
Fossils are the solidified remains or imprints of once living organisms.
An organism can also rot away in the sediment layer leaving a hole, a so-called mold.
The fossil record supplies information on which evolutionary changes have occurred, and how environmental conditions changed over time.
Vestigial structures are remnants of once useful structures.
A common ancestor relates all animals as different as a cat, dolphin, bat, and human.
Embryonic Development: In the early stages the embryos of vertebrates, animals containing a backbone, are very similar.
The shaping of certain traits for farming and breeding is called selective breeding.
Natural Selection in four steps a) Overproduction b) Genetic Variation c)Struggle to Survive d) Successful Reproduction
Survival of the Fittest: Only the offspring with the most favorable traits survives and reproduces.
Natural selection is caused by mutations, or changes in a gene
Charles Darwin was the first to theorize that evolution occurs in a process called Natural Selection.
A generation time is the period between the birth of one generation and the next.
Speciation is the creation of species independent from the common ancestor.
Speciation occurs in a three step process: a) Separation b) Adaptation c) Division
Created by: mkoch
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