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areal, original, essential, genuine, true; regular

species of living organisms expanding an areal owing to a human impact on the environment.

[Latin introductio - introducing] – spreading of animals and plants outside the borders of natural areal. See Acclimatization.

а conditional not concrete term, used with various meanings: 1) phenomena of continuing cooling of rock masses of the upper earth crust down to the zero temperature; 2) a

usually under B.s. or simply species it is understood a population, or variety of populations, of species which are able to crossbreed forming a fecund produce (without r