DIVERSITY - Refers to different variety of life found in certain area, POPULATION - The number of organisms of the same species that live in a particular geographic area at the same time, SPECIES - A group of organisms that can reproduce with one another, ENDANGERED - Type of organism that is threatened by extinction, EXTINCT - The dying out or extermination of a species, THREATENED - Any species which is likely to become an endangered species, POPULATION DENSITY - Average number of individuals per unit of area,

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