Colony (biology) Totally Explained

Everything about Colony Biology totally explained

In biology, a colony (from Latin colonia) refers to several individual organisms of the same species living closely together, usually for mutual benefit, such as stronger defences or the ability to attack bigger prey. Some insects (ants and honey bees, for example) live only in colonies. The Portuguese Man o' War is an example of a colony of four different polyp forms. A colony of single-celled organisms is known as a colonial organism. Colonial organisms were probably the first step towards multicellular organisms via natural selection. The difference between a multicellular organism and a colonial organism is that individual organisms from a colony can, if separated, survive on their own, while cells from a multicellular lifeform (for example, cells from a brain) cannot. Volvox is an example for the border between these two states.
A bacterial colony (or colony of other microorganisms) is defined as a cluster of organisms growing on the surface of or within a solid medium, usually cultured from a single cell. Because all organisms within the colony descend from a single ancestor, they're genetically identical (except for mutations which occur at a low, unavoidable frequency), thus this technique can be used to isolate genetically pure strains from a genetically mixed population.

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