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

Ch. 4 all lessons

TermDefinition
ecology is the study of how organisms interact with each other and with their environments.
species is a group of individuals that interbreed and produce fertile offspring.
population members of a species that live in the same area are called population.
community all the populations in a particular area are called a community.
ecosystem includes all the living things and their physical environments within a particular area.
biosphere includes all parts of earth that host life.
biotic factor parts of an ecosystem that are living or used to be living.
abiotic factor parts of an ecosystem that were never living.
habitat the specific environment that an organism lives in is its habitat.
resource is anything a organism needs.
population size describes the number of individual organisms present in a giving population at a giving time.
population density describes the number of individuals within a population.
population distribution sometimes called population disperiation.
age structure population always include individuals of different ages.
age structure diagram are visual tools scientists use to show the age structure of populations.
sex ratio is its proportion of mails to females.
survivorship curve to show how death varies with age.
immigration the arrival of individuals from a giving area
emigration is the departure of individuals from a giving area
migration is a sesonal movement for some animals
exponental growth changes in population size are shown with population growth
limiting factor are characteristics of the environment that limits population growth.
carring capacity is the largest population size a giving environment can sustainably support.
logistic growth describes how a populations initial exponental increase is slowed and finally stopped.
density dependent factor because its influence changes with population density.
density independent factor are limiting factors whose influence is not effected by population density.
biotic potential maximum ability to produce offspring in ideal conditions
Created by: Grace0
 

 



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