Question

The cranial capacity of which of the following is 500 cc.?
A.Cro-Magnon man
B.Modern man
C.Chimpanzee
D.Gorilla

Answer 1

Cranial capacity is indirectly a measure of the potential intelligence of an organism. The volume of the interior of the skull is measured in cubic centimeters. This is called cranial capacity. The volume of the interior of the skull indicates the size of the brain of an individual. The cranial capacity of 500 cc is of the largest living primates.

Complete answer: Gorillas are the largest living primates and have a cranial capacity of around 500 cubic centimeters. Although it has been studied that male gorillas have a cranial capacity of 650 to 700 cubic centimeters, the average size is 500 cc. Thus, the brain size of male gorillas is larger than that of female gorillas. The cranial capacity of 752 cc has also been observed in the gorilla as the largest brain size till now. Gorillas show emotions like human beings. They have specialized adaptive features that allow them to survive in the forest.
Chimpanzees have a brain size of around 300 to 500 cc. But the average size of the chimpanzee is 400 cc.
Humans developed from different evolutionary species. Each is represented by their characteristic cranial capacities. The Homo sapiens or the modern human species have much smaller brain size as compared to those of Homo neanderthalensis. The cranial capacity of the modern man is 1300 cubic centimeters. On the other hand, the Cromagnon man which is the earliest modern human of Europe has a cranial capacity of 1590 cubic centimeters.
Hence, we can conclude from the above discussion, that the right answer is option D i.e., Gorilla

Note: It is a very confusing question that whether brain size should be related to intelligence or not. In the ancient demonstrations, a correlation between brain size and intelligence suggests that the larger brain sizes make one more intelligent. But this fact is not clear. It needs more research and studies to understand the true relation of intelligence with the cranial capacity.