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.
You can use candling for three reasons : to make sure that eggs are the best possible quality before they go into the incubator, to watch the embryo develop during the 21 days of incubation and to discard eggs which are not developing before they have a chance to spread bacteria to others in the incubator.