<unk>  refers to the phenomenon where domesticated species are brought and cultivated in other favorable environments, facilitated by and for the benefit of humans. It has been defined as "the spread of plants domesticated in one area to favorable environments around the world". A growing and changing human population plays an important part on what plants are moved to new locations and which are left untouched. There have been examples of<unk>  dating back to 3000 BCE, but the most famous example is more recent, namely the Columbian Exchange. There have been many benefits to this movement of<unk>  material around the world, a main one being the<unk>  of food production, so that countries can take advantage of the different growing seasons to ensure the availability of certain food crops year-round.Corn, similar to a type that would have been seen in the days of the Columbian Exchange.
Biological globalization
Gerodiversity
Biological determinism
Cost sharing
Conformation–activity relationship
Therapeutic relationship
Influence of mass media
Functional integration 