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

Pawling

Biology final study

QuestionAnswer
What charge does DNA have? negative charge
What is the differences between DNA and RNA? DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cyt
What is the difference between a heterotroph and an autotroph? autotroph makes its own food/energy (plants) heterotroph must get it from somewhere else (humans)
Whats a food web? a system of interlocking and interdependent food chains.
Whats a food chain? a hierarchical series of organisms each dependent on the next as a source of food.
What is a food pyramid? a nutritional diagram in the shape of a pyramid, especially (in the US) the Food Guide Pyramid.
What is abiotic? non-living = soil-air-wind-sun
What is biotic? living = people-bugs-plants
What is the greenhouse effect? the trapping of the sun's warmth in a planet's lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
What is predation? Organism that eats another organism
What is commensalism? only one species that benefits
What is parasitism? a organism that feeds off a host
What is Mutualism? both benefits
What is the photic zone? the level of water with light
What is demographics? study of population
What are CFCs? chlorofluorocarbans
How do sponges feed? filter feed
What is the purpose of the clitellum in annelids? reprodution
Whats the purpose of the setae? movement
What is a closed circulatory system? closed= blood stays in the vain
What is a open circulatory system? open= blood leaves vain and surrounds the organs
What is CFCs issue? it puts pollution in the air
What is a characteristic of arthropods? exoskeleton
What causes elephantiasis? filarial
What is chitin? protein that makes up the three layers of the exoskeleton
Created by: quepaw2017
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