If a structure has no apparent function in one species,yet is homologous to a functional organ in another species,this structure is termed:

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A structure that has no apparent function in one species, yet is homologous to a functional organ in another species, is called vestigial. This indicates that the structure was likely functional in a common ancestor but has since lost its functionality in one of the species through evolution.

If a Structure Has No Apparent Function in One Species,yet