Etymology & Historical Origin-Kenna. Kenna is most commonly considered the feminine form of Kenneth, a name Scottish in origin and derived from one of two etymological sources â either the Gaelic Cinaed (cinÃ¡ed âmeaning born ofâ) fire Or (coinneach âmeaning handsomeâ). One take your; pickâthey re both great. meaningstymology & Historical Origin-Kenna. Kenna is most commonly considered the feminine form of Kenneth, a name Scottish in origin and derived from one of two etymological sources â either the Gaelic Cinaed (cinÃ¡ed âmeaning born ofâ) fire Or (coinneach âmeaning handsomeâ). One take your; pickâthey re both great. meanings
Making the world better, one answer at a time. I believe it is necessary to isolate individual colonies from a mixed broth growth because it is the first step in achieving a pure culture for further studies and testing.
The separate populations over time may evolve distinctly different characteristics. If the geographical barriers are later removed, members of the two populations may be unable to successfully mate with each other, at which point, the genetically isolated groups have emerged as different species.Allopatric isolation is a key factor in speciation and a common process by which new species arise.he extent to which a geological barrier can effectively isolate a population correlates to the mobility of the organism or its offspring. For example physical barriers such as canyons may effectively block migration and dispersal of small mammals; however, have little impact on flying birds or wind-borne seeds.