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

LS - Inv. 1

Living Systems - Investigation 1

Algae A large plantlike group of water organisms that make their own food
Atmosphere The layer of gases surrounding Earth
Bacteria Microorganisms that act as decomposers
Biosphere A system of interacting living organisms on Earth
Carnivore An animal that eats other animals
Compost Decaying organic material
Consumer An organism that cannot make its own food. Consumers eat other organisms.
Decomposer An organism that breaks down plant and animal material into simple chemicals.
Ecosystem A community of organisms interacting with each other and with the nonliving enviornment
Energy What cells need to do work
Food Chain A description of the feeding relationships between organisms in an environment
Food Web The feeding relationships among all the organisms in an ecosystem. Arrows show the flow of matter and energy from one organism to another.
Geosphere (Lithosphere) Earth's core, mantle, and crust
Herbivore An animal that eats plants
Hydrosphere The interacting water on, under, and above Earth's surface
Interact To act upon one another
Living Alive
Microorganism Microscopic organisms such as bacteria and fungi
Nonliving Not alive
Omnivore An animal that eats plants and animals
Predator An animal that preys on other animals
Producer An organism, such as a plant or algae, that makes it's own food
Recycle To use again
Redworm An earthworm that lives on the surface of the soil
Subsystem A small system that is inside a larger system
System A collection of interacting parts
Created by: cbuzynski