Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

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 1

populations and communities

organism a living thing
habitat an environment that provides the things an organism needs to live, grow, and reproduce
biotic factors a living part of an organisms habitat
abiotic factors a nonliving part of an organism's habitat
photosynthesis the process in which organisms use water along with sunlight and carbon dioxide to make their food
species a group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce
population all the members of one species in a particular area
community all the different populations that live together in an area
ecosystem the community of organisms that live in a particular area, along with their nonliving surrounding
ecology the study of how living things interact with each other and with there environment
estimate an approximation of a number, based on reasonable assumptions
birth rate the number of births in a population in a certain amount of time
death rate the number of deaths in a population in a certain amount of time
immigration moving into population
emigration leaving a population
population density the number of individuals in an area of specific size
limiting factor an environmental factor that causes a population to decrease
carrying capacity the largest population that an area can support
natural resource anything in the environment that is used by people
renewable resource a resource that is either always available or is naturally replaced in a relatively short time
niche the role of an organism in its habitat, or how it makes its living
competition the struggle to between organisms to survive as they attempt to use the same limited resource
predation an interaction in which one organism kills another for food
predator the organism that does the killing
prey the organism that is killed
symbiosis a close relationship between two species that benefit at least one of the species
mutualism a relationship in which both species benefits
commensalism a relationship in which one species benefits and the other species is neither helped nor harmed
parasitism one organism living on or inside another and harming it
parasite the organism that benefits
host the organism it lives on or in
Created by: mbourdin