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Q.
Which of the following classes has largest number of animals?
Chhattisgarh PMTChhattisgarh PMT 2005
Solution:
Class-In sect a is the largest taxon of Metazoa of the more than twelve lacs of presently known animal species, more than ten lacs are of In sect a alone. This indicates not only the vastness and diversity of insects but also their extremely successful existence upon the present earth. That is why, insects are studied under a special branch of Biology called Entomology.