NEET BIOLOGY

Detailed explanation-1: -If we accept May’s global estimates, only 22 per cent of the total species have been recorded so far. Applying this proportion to India’s diversity figures, we estimate that there are probably more than 1, 00, 000 plant species and more than 3, 00, 000 animal species yet to be discovered and described.

Detailed explanation-2: -As per R. May, global species diversity is about 7 million. While other scientists believe it would range from 20-50 million. Currently known and described species range between 1.7-1.8 million.

Detailed explanation-3: -Considering May’s discovery proposal there are more than 1, 00, 000 species of flora and 3, 00, 000 species of fauna are yet to be recognized and described. So, the correct answer is option D. There are nearly 1, 00, 000 floral species and 3, 00, 000 fauna species are not yet discovered.

Detailed explanation-4: -Assertion (A): According to Robert May’s estimate, only about 22% of the total number of existing species have been recorded so far. Reason (R): More than 1, 00, 000 plant species are yet to be discovered in India.

Detailed explanation-5: -Remaining 78% of species are yet to be discovered and named. In India, if May’s estimates are applied then, there are probably more than 1, 00, 000 plant species and more than 3, 00, 000 animal species yet to be discovered and described. Q.