Anatomical features that are present in some species with no apparent function but resemble structures of their presumed ancestors are called: vestigial structures.
What is a species?
A species can be defined as a biological classification of related organisms or living things that have similar characteristics and are capable of breeding with one another.
What is a vestigial structure?
A vestigial structure refers to an anatomical feature that resemble structures that are fully functional in their presumed ancestors but has no apparent function.
The examples of a vestigial structure.
Some examples of a vestigial structure in species of a living organism are:
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