Advertisement Upgrade to remove ads

Mr. Atwood

Symbiosis

close (in/on/near) relationship between 2 organisms

Mutualism

(+,+)---Both benifit

Commensalism

(+,0)---One organism benifits-no effect on the other

Parasitism

(+,-)---One benefits, and one is harmed (host)
ie: intestinal worm

Predator

Kills to eat

Prey

is killed and eaten

Scavenger

eats dead organisims-usually does not kill for food

Competition

Struggle for resources-between species or within a population

population

all members of a species in an ecosystem

ecosystem

smaller area that is measurable (lake/pond)-may be different than biome

community

all living organisms in an ecosystem

biosphere

area where life occurs of earth

Biome

large geographical area of similar plants and animals(climate driven)-temperaature-precipitation

habitat

where an organism lives (hollow tree)

niche

what an organism does or is. Its role in the ecosystem
ie: coyote-predator

biotic factors

living factors in an ecosystem

abiotic factors

non-livng factors in the ecosystem

population density

the number of individuals in a specific area

birth rate

the number of births in a population in a cartain amount of time

death rate

the number of deaths in a population in a certain amount of time

immigration

moving into a population

emigration

leaving a population

limiting factor

an environmental factor that prevents a population from increasing

carrying capacity

largest population that an environment can support

preditation

an interaction in which one organism hunts and kills another for food

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set