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A metapopulation is a group of populations that are separated by space but consist of the same species. These spatially separated populations interact as individual members move from one population to another.etapopulation Theory. Metapopulation theory states that a large population consisting of a single species is most stable over a large area when it is divided up into smaller subpopulations. These subpopulations take advantage of small, local environments, like your backyard or the park down the street.
Metaplasia (Greek : change in form) is the reversible replacement of one differentiated cell type with another mature differentiated cell type.The change from one type of cell to another may generally be a part of normal maturation process or caused by some sort of abnormal stimulus.etaplasia (Greek : change in form) is the reversible replacement of one differentiated cell type with another mature differentiated cell type.