Question

Arrange the following human ancestors according to their decreasing order of cranial capacity.
i) Australopithecus
ii) Neanderthal man
iii) Dryopithecus
iv) Cro-Magnon man

• A. $i\to iv\to iii\to ii$
• B. $iv\to ii\to i\to iii$
• C. $iii\to i\to iv\to ii$
• D. $ii\to i\to iii\to iv$

Answer 1

The correct option is A $i\to iv\to iii\to ii$

• Neanderthals are known for their large cranial capacity 1,600 cm3 (98 cu in) on an average is larger than that of modern humans.
  
• Cro-Magnons brain capacity was about 1,650 cc (100 cubic inches), somewhat larger than the average for modern humans.
  
• Dryopithecus has a cranial capacity of about 1300 cc. It is in-between that of Neanderthal man and erect man.
  
• The brain capacity of Australopithecus was 461 cc.
  

So, the correct option is 'iv→ii→iii→i'.