person of color - (formal) any non-European non-white person. person of colour. individual, mortal, person, somebody, someone, soul - a human being; there was too much for one person to do. formality - compliance with formal rules; courtroom formality.
Incubating and viewing plates. Incubating the plates to promote growth of microbes is an essential part of any microbiology investigation. Incubating in aerobic conditions, and below human body temperature, reduce the risk of encouraging microorganisms (particularly bacteria) that could be pathogenic to humans.
Gas Exchange. Gas exchange occurs during incubation by exchanging air from within the substrate and external air. Natural temperature fluctuations between night time temperatures and day time temperatures will cause gasses to exchange. Mycelium produce carbon-dioxide and can stall if there is not sufficient gas exchange.