2.The range of cranial capacities in the following ancestral forms were
2.The range of cranial capacities in the following ancestral forms were

(a) Australopithecus………………………….

Solution:-

450 cm3 to 600 cm3

(b) Homo habilis……………………………

Solution:-

680 cm3 to 735 cm3

(c) Homo erectus…………………………..

Solution:-

800 cm3 to 1125 cm3

(d) Cro-magnon………………………………

Solution:-

1450 cm3 to 1600 cm3

(e) Homo  sapiens……………….

Solution:-

1450 cm3 to 1600 cm3