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lesson 1 - 2
| Term | Definition |
|---|---|
| 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. |
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