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

chapter two

Worddefinition
ecology scientific study of interactions between organisms and their environments
biosphere portion of the Earth that supports life
abiotic factor nonliving parts of an organisms environment
biotic factor all the living organisms that inhabit an envorinment
population group of organisms all of the same species which interbreed and live in the same place at the same time
biological community a community made up of interacting population in a certain area at a certain time
ecosystem interactiosn among populations in a community
habitat place where an organism lives out its life
niche role or position a species has in its environment
symbiosis permanent close association between two or more organisms of different species
community collection of several interacting populations that inhabit a common environment
mutualism a sybiotic relationship in which both species benefit
parasitism symbiotic relationship in which one orgainism benefits at the expense of another
autotroph an organism that uses light energy or energy stored in chemical compounds to make energy rich compounds a producer
heterotroph organism that cannot make its own food and feeds on other organisms
decomposers break down the comples comopunds of dead and decaying plants and animals into simpler molecules that can be more easily absorbed
food chain a simple model that scientists use to show how matter and energy move through an ecosystem
trophic level each organism in the food chain represents a feeding step
food web shows all possible feeding relationships at each trophic level in the community
biomass total weight of living matter at each trophic level
Created by: bio123
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