Artificial media/medium is any substance upon which bacteria or molds are grown in the lab. It can also be called agar or just plainly called "media." There are many kinds of media, selective media, which only has the ability to grow specific types of microbes to prevent contamination. Differential media such as blood agar can grow many kinds of microbes, but allows the differentiation between the target microbes and Colony (biology) of an unwanted microbe. Kingdoms/Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular: bacterium) are a major group of living organisms. ... Mouldy cream cheese Molds, or moulds, are various fungi that cover surfaces as fluffy mycelia and usually produce masses of asexual, or sometimes sexual, spores. ... Agar is a galactose polymer (or agarose) obtained from the cell walls of some species of red algae or seaweed (Sphaerococcus euchema) and species of Gelidium, chiefly from eastern Asia and California. ... A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). ... The Lachine Canal, in Montreal, is badly polluted Pollution is the release of harmful environmental contaminants, or the substances so released. ... An agar plate is a sterile Petri dish that contains agar plus nutrients, and is used to culture bacteria or fungi. ... In biology, a colony (from Latin colonia) means several individual organisms of the same species living closely together, usually for mutual benefit, such as stronger defences, the ability to attack bigger prey etc. ...