Find the odd one out related to evolution
Vertebrate hearts
Vertebrate brains
Wings of butterfly and of birds
Forelimbs of mammals
$A$ : India falls under oriental realm out of other biogeographical realms.
$R$ : World is divided in six biogeographical realms.
Which of the following is the most primitive ancestor of man?
A substance (low molecular weight protein) produced by host cells in response to viral infection and protect other cells against further viral infection is