Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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

Biology (10th Grade)

Cell The basic unit of life
Ecology The study of organisms and their interactions with the environment
Population Multiple of the same species living in the same area, at the same time
Catalyst Speeds up chemical reactions
Alexander Fleming Discovered Penicillin
Carrying Capacity Maximum amount of individuals an ecosystem can sustain
Biosphere Portion of Earth that supports life
Ecosystem Made up of the organisms and nonliving things in an area
Biotic Factors All living organisms in an environment
Abiotic Factors All nonliving things in an environment
Niche An organism's role in it's ecosystem
Carbon A part of all organic compounds
Condensation Water in the air changes from a gas to tiny droplets of liquid
Precipitation Water returns to Earth as rain or snow
Nitrogen A nutrient that organisms need to produce proteins
Saturated and Unsaturated Fats Lipids
DNA Made of amino acids
Nitrogen Fixation Nitrogen is captured and converted into a form that is usable by plants
Ecological Succession One community replaces another community over time
Secondary Succession One community replaces another community after it is destroyed
Climax Community Mature community that developes in secondary succession
Pasteur Demonstrated that the theory of spontaneous generation was incorrect
Remak Discovered cell division
Leeuwenhoek Discovered microscopic living creatures in water
Spontaneous Generation The idea that could spring forth from inanimate matter
Brown's Orchids Caused the discovery of the nucleus
Brown Made contributions to atomic theory and cell theory
Schwann Discovered animal cells
Two Classes of Natural Resources Renewable and nonrenewable
Three Types of Diversity Genetic,species,and ecosystem
Created by: Shadowdeath7392