Save
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

Ch 13 Ecosystems

Levels of Organization & Energy Flow w/in an ecosystem

QuestionAnswer
levels of organization within the living world organism, populations, communities, ecosystems, biomes, biosphere.
population All of the individuals of a given species in a specific area or region at a certain time.
members of a population compete for food, water, space, and mates.
community All the different populations in a specific area or region at a certain time
___ involve many types of interactions among populations communities
ecosystem One or more communities in an area and the abiotic factors
abiotic factors nonliving parts of an ecosystem
examples of abiotic factors water, sunlight, air, temperature, and soil
biomes Individual ecosystems grouped together according to the climate and the predominant vegetation
habitat The place where an organism lives in order to obtain its food, water, shelter and other things needed for survival
niche The particular role of an organism in its environment including type of food it eats, how it obtains its food and how it interacts with other organisms
energy roles determined by how the organism obtains its energy and how they interact with other organisms in the environment
examples of energy roles producer, consumer, or decomposer
consumer an organism that obtains energy by feeding on other organisms
producer an organism that can make its own food
decomposer organisms that break down wastes and dead organisms and return the raw materials to the environment
food chains Use pictures or words and arrows to show the movement of energy through the trophic levels of organisms
trophic level indicates the position that an organism occupies in the food chain—what it eats and what eats it.
food webs Describe the organisms found in interconnecting food chains using pictures or words and arrows
energy pyramid Show the amount of energy that moves from one trophic level to another in a food chain
The most energy is available at the ___ level of the pyramid producer
Energy availability ___ as it moves up the energy pyramid decreases
population density the number of organisms in a given amount of space
birth main way that organisms are added to a population
birth rate the number of births in a population during a certain amount of time
death the main way that organisms leave a population
death rate the number of deaths in a population during a certain amount of time
immigration when organisms move into a population from another environment
emigration when part of a population leaves the environment
limiting factors affect the number of organisms an environment can supoort
examples of limiting factors climate, availability of food, water, space, and shelter
carrying capacity the maximum number of organisms that can survive in a particular ecosystem
climate refers to the temperature and amount of rainfall in a particular environment
Created by: Ms. Phillips
Popular Science 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