NEETZoologyEvolution
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In human evolution, Homo erectus is placed chronologically after Homo habilis. Reason (R): The cranial capacity of Homo erectus was significantly smaller than that of Homo habilis. In the light of the above statements, choose the correct answer from the options given below:
Options
- A(A) is true but (R) is false.
- BBoth (A) and (R) are true and (R) is the correct explanation of (A).
- CBoth (A) and (R) are true but (R) is not the correct explanation of (A).
- D(A) is false but (R) is true.
Correct answer
A. (A) is true but (R) is false.
Step-by-step solution
According to the fossil record of human evolution, Homo habilis appeared about 2 million years ago, followed by Homo erectus around 1.5 million years ago. Thus, the Assertion is true. The cranial capacity of Homo habilis was between 650-800 cc, whereas Homo erectus had a larger brain of around 900 cc. Therefore, the Reason is false because the cranial capacity of Homo erectus was larger, not smaller, than that of Homo habilis. Answer: (A) is true but (R) is false.