Which one of the following character differentiate man from other mammals
Superior Intelligence
Power of speech
Social life
Greater cranial capacity
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
Palynology is the study of
A scientist who worked on rats cut their tails upto $21$ successive generations but at last he found that tail remained normal. By this experiment theory of which scientist is disapproved