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
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

Clues about Evolutio

QuestionAnswer
Fossils Fossils are the remains, an imprint, or a trace of life from an earlier time. (Similar features in fossils and either existing creatures or fossilizd creatures, show evolutionary relationships.) There are five types of Fossils.
Mineralized Fossils A piece of wood or bone replaced by minerals.
Imprint Fossils An imprint of a leaf, feather, or organism in rock.
Cast Fossils A cast made of minerals that filled in hollows of an animal track, Mollusk shell, or other parts of an organism.
Frozen Fossils An organism frozen in ice.
Fossils in Amber An insect or other organism trapped in plant resin.
Embryology The study of embryos and their development. Specifically, scientists look at similarities and differences in embryos of different species. Similarities in embryos show evolutionary relationships. The closer the similarity, the closer the relationship.
Homologous Structures Homologous Structures are the body parts with differing functions but, surprisingly, similar structures. These similar structures indicate a similar origin. The difference in function is what makes their similarity so surprising.
DNA Scientists compare DNA from living creatures to find similarities. Similarities in DNA show evolutionary relationships. The closer the similarity between DNA of two species, the closer their evolutionary relationship.
Vestigial Structures Body parts that have little or no function and are usually greatly reduced in size. These vestigial structures show a relationship to creatures that had functioning versions of these functions
Created by: CharlieL
Popular Science 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