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

ch 4 vocab 1,2,3

QuestionAnswer
Ecology The study of how organisms interact with each other and their environment.
Species A group of individuals that interbreed and produce fertile offspring.
Population Members of a species that live in the same area at the same time .
Community All of the populations in an particular area.
Ecosystem All of the living things and their physical environments within a particular area.
Biosphere All parts of Earth that host life with all of its organisms and environments.
Biotic factors Parts of an ecosystem that are living or used to be living.
Abiotic factors Parts of an ecosystem that have never been living.
Habitat An environment in which organisms live.
Resource Anything an organism needs, including nutrition, and shelter.
Population size The number of individual organisms present in a given population at a given time.
Population density The number of individuals within a population per unit area.
Population distribution How organisms are arranged within an area.
Age structure The relative numbers of organisms of each age within a population.
Age structure distribution Visual tools scientists use to show the age structure of populations.
Sex ratio The proportion of males to females.
Survivor ship curves To show how the likely hood of death varies with age.
Immigration The arrival of individuals from an outside given area.
Emigration The departure of individuals from a given area.
Migration A seasonal movement into and out of an area.
Exponential growth When a population increases by a fixed percentage each year.
Limiting factors Characteristics of the environment that limit population growth.
Carrying capacity The largest population size a given environment can sustainably support.
Logistic growth How a population's initial exponential increase is slowed and finally stopped by limiting factors.
Density-dependent factor High population density increases competition for resources such as food and water.
Density-independent factor Limiting factors whose influence is not affected by population density.
Biotic potential Maximum ability to produce offspring in ideal conditions.
Created by: unicornfarts34
 

 



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