Question

what are vestigial organs

Answer 1

Vestigiality is the retention during the process of evolution of genetically determined structures or attributes that have lost some or all of their ancestral function in a given species. Assessment of the vestigiality must generally rely on comparison with homologous features in related species. 

Answer 2

vestiginality is the retention during the process of evolution of genetically determined structures or attributes that have lost some or all of their ancestral function in a given species . Assessment of the vestiginality must generally on comparison with homologous feature in related species .