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 1 hon chapter 14

QuestionAnswer
fossil any preserved evidence of an organism
paleontologist a scientist who studies fossils
relative dating a method used to determine the age of rocks by comparing them with those in other layers
law of superposition states thart younger layers of rocka are deposited on top of the older layers of rock
radiometric dating uses the decay of radioactive isotopes to measure the age of a rock
half-life the amount of time it takes for half of the original isotope to decay
geologic time scale a record of Earth's history
epochs the smallest units of geologic time
periods divisions of millions of years consisting of 2 or more epochs.
era a unit of geologic time that can consist of 2 or more periods.
eon the longest unit of geologic time that can consist of billions of years.
cambrian explosion the few million years when the ancestors of most major animal groups evolved.
k-t boundart the first period of the cenozoic era
plate tectonics the movement of several plates that make up the surface of Earth.
sponteneous generation the idea that life arises from nonlife.
theory of biogenesis the theory that living things can only be produced ny other living things
endosymbiont theory the theory that eukaryotic cells lived with prokaryotic cells.
Created by: gr8dancr21
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