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| Term | Definition |
|---|---|
| organism | an individual animal, plant, or single-celled life form. |
| habitt | the natural home or environment of an animal, plant, or other organism |
| biotic factor | A biotic factor is any living component that affects the population of another organism, or the environment. This includes animals that consume the organism, and the living food that the organism consumes. |
| abiotic | physical rather than biological; not derived from living organisms. |
| 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 binomia |
| 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 biological community of interacting organisms and their physical environment. |
| ecology | the branch of biology that deals with the relations of organisms to one another and to their physical surroundings. |
| birth rate | the rate of which an organism is born |
| death rate | the rate of which an organism is dies |
| immigration | the action of coming to live permanently in a foreign place |
| emigration | the act of leaving one's own country to settle permanently in another; moving |
| population density | Image result for population density definition Population density (in agriculture: standing stock and standing crop) is a measurement of population per unit area or unit volume |
| limiting factor | Image result for limiting factor definitionwww.nature.com 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 factor | The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment. |