Since the price to buy a tuxedo can be around $1,000 and tuxedo rentals run approximately $200 each, you'll get more for your money when you buy. There are, of course, other reasons to purchase when you step into a tuxedo store. For one thing, you'll probably have more choice in fabric, lapels, design or buttons.ince the price to buy a tuxedo can be around $1,000 and tuxedo rentals run approximately $200 each, you'll get more for your money when you buy. There are, of course, other reasons to purchase when you step into a tuxedo store. For one thing, you'll probably have more choice in fabric, lapels, design or buttons.
Why does geographic isolation cause speciation? An example of a separated population to geographic isolation are the American finches that migrated to the Hawaiian islands. From this original finch population, 23 new species of honeycreepers are evidence of speciation due to geographic isolation.
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.