Android is software for mobile phones, tablets and a growing range of devices encompassing everything from wearable computing to in-car entertainment. It launched in 2003 and is the worldâs most popular mobile operating system (OS).
Gut flora (gut microbiota, or gastrointestinal microbiota) is the complex community of microorganisms that live in the digestive tracts of humans and other animals, including insects. The gut metagenome is the aggregate of all the genomes of gut microbiota. The gut is one niche that human microbiota inhabit.
The second microbe that is among the smallest would be bacteria and then probably protists, as a generalization, after that (protists and bacteria have wider ranges of sizes than viruses).Bacteria are microscopic living organisms, while the viruses are non-living sub-microscopic organisms. microbe is an organism that can be seen using a microscope. They  include fungi, bacteria, viruses, archea and protists. All except  fungi consist of a single cell, althou â¦ gh microbe diversity is vast.  Microbes are the causes of many diseases, such as the common cold,  the black death and malaria.