Assertion (A): Biologists are not sure about total number of prokaryotic species.
Reason (R) : Nearly 45,000 species of plants and twice as many of animals have been recorded from India.

Options

A. Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion.(A)
B. Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).
C. Assertion (A) is true but reason (R) is false.
D. Assertion (A) is false but reason (R) is true.

Answer

B

Explanation

Explanation : Biologists are not sure about total number of prokaryotic species because :(a ) Conventional taxonomic methods are not suitable for identifying microbial species. (b) Many species are not culturable under laboratory conditions .