Which of the given pairs are correct
$I.$ Wings of insects and birds are homologous organ
$II.$ Wings of bats and bird are homologous organ
$III.$ Wings of insect and bats are analogous
$IV.$ Wings of insect and bird are analogous
Choose the correct option
$I$ and $II$
$I$ and $III$
$I$ and $IV$
$II, III$ and $IV$
The precipitation method of blood tests for finding out the inter-relationship among different animals was given by
Role of isolation in evolution is
Given diagram depicts