Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know (0)
Remaining cards (0)
Know (0)
0:00
share
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

Sookdeo-Biology Ch.4

Ecology

QuestionAnswer
autotroph capture energy from sunlight or chemicals and use it to produce its own food
primary producers first producer of energy-rich compounds that are later used by other organisms
photosynthesis process used by plants and other autotrophs to capture light energy and use it to power chemical reactions
chemosynthesis process in which chemical energy is used to produce carbohydrates
consumer organism that relies on other organisms for its energy and food supply
heterotroph organism that obtains food by consuming other living things
detritus material made up of decaying bits of plant and animal material
food chain steps in an ecosystem in which organisms transfer energy by eating and being eaten
phytoplankton photosynthetic algae found near the surface of the ocean
food web complex interactions formed by the feeding relationships among the various organisms in an ecosystem
trophic levels each step in a food chain or food web
ecological pyramid relative amounts of energy or matter contained within each trophic level in a given food chain or food web
biomass total amount of living tissue within a given trophic level
biogeochemical cycle elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another
nutrient chemical substance that an organism needs to sustain life
nitrogen fixation process of converting nitrogen gas into nitrogen compounds that plants can absorb and use
denitrification process by which bacteria convert nitrates into nitrogen gas
limiting nutrient single essential nutrient that limits productivity in an ecosystem
Created by: dsookdeo
 

 



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