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
Homo sapiens originated how many years ago
Krebs' cycle, glycolysis, lipogenesis, enzymes, all of these indicates