chapter 12 voc

ecology

the study of the interaction among living things in their entertainment

interact

to act upon or influence something.

comminity

a group of different populations that live in the same area.

ecosystem

The interactions among the populations of a community and the nonliving thing in their environment

habitat

the place where an organism lives

popuation

A group of organisms of the same species that live in the same area.

succession

the process by which a community changes over time

acid rain

rain that is caused by pollution and is harmful to organisms because it is acidic

pollution

anything added to the environment that is harmful to living things

biome

An ecosystem found over a large geographic area

Biosphere

the part of earth where living things canexxist

resousece

a thing an organism uses to live

consumer

anorgansim that feeds off an other organism

food chain

the feeding order of organisms in a community.

producer

an organism that makes it’s own food

omnivore

a consumer that eats both pants and animals.

pyramid of numbers

A diagram that compares the spices if population at different level of a food chain

food web

all the food chain in a cimmu ity that are liked to each other

energy pyramid

A diagram that compares the amounts of energy available to the population at different levels of a food chain

groundowater

the water under earth’s surface.

condense

to change form a gas to a liquiquid.

evaporate

to change from a liquid to a gas.

Nitrogen fixation

the process by which certain bacteria change nitrogen gas from the air into ammonia.

climax community

A community that changes little over time