"Eternity of life'' means

The homologous structures are

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

'Population tends to increase geometrically, while food supply increases arithmatically'. This concept was put forward by