Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

Chapter 13 Vocab

ecology study of the interactions among living things and their surroundings
community collection of all the different populations that live in one area
ecosystem collection of organisms and nonliving things, such as climate, soil, water, and rocks, in an area
biome regional or global community of organisms characterized by the climate conditions and plant communities that thrive there
biotic living things, such as plants, animals, fungi, and bacteria
abiotic nonliving factor in an ecosystem, such as moisture, temperature, wind, sunlight, soil, and minerals
biodiversity variety of life within an area
keystone species organism that has an unusually large effect on its ecosystem
producer organism that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals
autotroph organism that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals
consumer organism that obtains its energy and nutrients by eating other organisms
heterotroph organism that obtains its energy and nutrients by consuming other organisms
chemosynthesis process by which ATP is synthesized by using chemicals as an energy source instead of light
food chain model that links organisms by their feeding relationships
carnivore organism that obtains energy by eating only animals
detritivore organism that eats dead organic matter
specialist consumer that eats only one type of organism
trophic level level of nourishment in a food chain
herbivore organism that eats only plants
omnivore organisms that eats both plants and animals
decomposer detritivore that breaks down organic matter into simpler compounds, returning nutrients back into an ecosystem
generalist species that doesn't rely on a single source of prey
food web model that shows the complex network of feeding relationships within an ecosystem
hydrologic cycle pathway of water from the atmosphere to Earth's surface, below ground, and back
biogeochemical cycle movement of a chemical through the biological and geological, or living and nonliving, parts of an ecosystem
nitrogen fixation process by which certain types of bacteria convert gaseous nitrogen into nitrogen compounds
biomass total dry mass of all organisms in a given area
energy pyramid diagram that compares energy used by producers, primary consumers, and other trophic levels
Created by: mbaker36
Popular Biology sets




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:
restart all cards