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

biology ch 5

Boulder High Biology Ch. 5

worddefinition
population density the number of individuals per unit area
immigration when individuals move into an area
emigration when individuals move out of an area
exponential growth when individuals reproduce at a constant rate, occurs under ideal conditions
logistic growth when growth of a population slows after exponential growth
carrying capacity when population levels off, the largest number of individuals an environment can support
limiting factor a factor that causes population growth to decrease
density-dependent limiting factor a factor that causes the number of individuals to be limited only when there are some certain number of individuals per area (density)(such as food supply)
predator-prey relationship the relationship between prey and predator and it often controls the population
density-independent limiting factors factors that affect the populatio no matter what it's density (such as unusual weather)
demography scientific study of human populations
demographic transition dramatic slowing of growth (such as the USA)
age-structure diagrams population profiles showing the percentage of people (male and female) in each age group
Created by: viki.lawrence
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