But they come with their own little USB adapters. Lol. dont trust any computer without bluetooth built-in from default, this is like asking if you want a notebook without wi-fi. Bluettoh mouses have the advantage that they dont use 1 USB port, as bluetooth is a hidden antena within the notebook.
Definition of arkose. : a sandstone characterized by feldspar fragments that is derived from granite or gneiss which has disintegrated rapidly.
Ribose and deoxyribose are pentose. Ribose is also called ribofuranose because of the structural relationship to furane. The only structural difference between ribose and deoxyribose is the loss of an-OH group in position 2 in the ring.