A process in nature in which organisms possessing certain genotypic characteristics that make them better adjusted to an environment tend to survive, reproduce, increase in number or frequency, and therefore, are able to transmit and perpetuate their essential genotypic qualities to succeeding generations.
A watchglass can be used as a beaker cover, but you can also place small amounts of chemicals on it and then heat it (for example, to evaporate some water from a wet chemical). From Wikipedia: A watch glass is a circular, slightly concave piece of glass used in chemistry as a surface to evaporate a liquid, or as a cover for a beaker. The latter use is generally applied to prevent dust or other particles entering the beaker; the watch glass does not completely seal the beaker, and so gas exchanges still occur.
An advanced alkali-aluminosilicate glass technology developed by Corning that is used in a variety of screens for mobile devices like smartphones and tablets as well as displays for PCs and TVs.hile Gorilla Glass is now the predominant technology used in protecting mobile device screens, it may face competition in the future from another Corning product, Willow Glass, which offers flexible, bendable qualities that make it ideal for wearable computing devices like Appleâs rumored iWatch device. PREVIOUSgopher.