Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

Assertion: Cro- magnon man has more intelligence than the man of present time.
Reason: He is regarded as the most recent ancestor of today's man.
A. If both assertion and the reason are true and the reason is a correct explanation of the assertion.
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false
E. If the assertion is false but reason is true.

seo-qna
Last updated date: 19th Jun 2024
Total views: 393.9k
Views today: 10.93k
Answer
VerifiedVerified
393.9k+ views
Hint: The study of the history of life forms like changes in flora and fauna that have occurred over millions of years on earth is known as evolution. Evolution simply means an orderly change from one condition to another. Evolution of humans is a very complex phenomenon. It started about fifteen million years ago and till now it is continuous with modern man. It is considered as the most successful evolution of all times.

Complete answer: Human evolution began with primates. The first real primate ancestors were tree shrews. About fifteen million years ago, primates called Dryopithecus and Ramapithecus existed. Dryopithecus are considered to be the common ancestors of men and apes. After apes, man-like animals called Australopithecus existed having both apes and man-like characters. Then pre pre-historic man came into existence. These include species like Homo habilis (first human-like being), Homo erectus and Homo sapiens.
Homo sapiens includes subspecies like Neanderthal man, Cromagnon man and modern man. Cro Magnon man has the highest cranial capacity among all the evolutionary species of humans. Thus, they are considered more intelligent than modern men. Cro Magnon had a larger forehead and a well developed chin along with a semi circular jaw and orthognathus face. Speech and language centers were also well developed in them. These features are also seen in modern man. They also have orthognathus faces and well developed speech and language centers. This modern man is believed to be developed from Cromagnon man as they have many similar characteristics. Thus Cromagnon men are considered as the recent ancestors of modern man.
Thus both assertion and reason are true but reason is not a correct explanation of assertion.
Thus the correct answer is option B.

Note: Cro-Magnon man first started domestication of dogs. They also painted beautiful paintings on cave walls (prehistoric art). Agriculture was started by modern man and thus human settlements started through agriculture. Thus Homo erectus is the direct ancestor of Homo sapiens and Cromagnon man is the direct ancestor of modern man. Evolution of humans is considered parallel to the evolution of the brain and language.