Question

The number of described species of living organisms is _________

(a) 1.25 million species

(b) 0.5 million species

(c) 1.025 million species

(d) 1.7 million species

This question was addressed to me in quiz.

My doubt is from Diversity in the Living World topic in chapter The Living World of Biology – Class 11

Answer 1

The correct choice is (d) 1.7 million species

For explanation: There are 1.7-1.8 million species of living organisms described on the date. Also, there are 1.25 million species of animals, 0.5 million species of plants and 1.025 million species of insects found and described by scientists.