Homologous organs are .......

$A$: Similarities in proteins and genes performing a given function among diverse organisms give clues to common ancestry.
$R$: All groups of vertebrates arise from a common ancestor with great adaptation capability.

Homologous organs are ............. .

$A$ baby has been born with a small tail. It is a case of exhibiting:

Homologous organs are those which have:

Identify the vestigial organ in the given figure.