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lesson 1 - 2

TermDefinition
birth rate the number of live births per thousand of population per year
death rate the ratio of deaths to the population of a particular area during a particular period of time, usually calculated as the number of deaths per one thousand people per year
immingration the action of coming to live permanently in a foreign country
emigration the act of leaving one's own country to settle permanently in another; moving abroad
population density is a measurement of population per unit area or unit volume; it is a quantity of type number density. It is frequently applied to living organisms, and most of the time to humans. It is a key geographical term.
limiting factor In ecology, common limiting factor resources are environmental conditions that limit the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem
carrying capacity the number of people, other living organisms, or crops that a region can support without environmental degradation.
organism an individual animal, plant, or single-celled life form.
habitat the natural home or environment of an animal, plant, or other organism.
biotic factor The living things in an ecosystem are called biotic factors. Living things include plants, animals, bacteria, fungi and more.
abiotic factor In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
species a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g., Homo sapiens.
population a particular section, group, or type of people or animals living in an area or country.
community a group of people living in the same place or having a particular characteristic in common
ecosystem A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit
ecology the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
Created by: Katiegirl28!