General Science - Biology MCQs

Q.  Maximum number of animals species belong to which among the following groups?

a. Mammalia
b. Aves
c. Pisces
d. Arthropoda


ANSWER: See Answer
 
Arthropoda is the largest phylum of animal kingdom because around 2/3rd of all the named species on Earth belong to this phylum.
Ants, mosquitoes, flies, cockroaches, shrimp, crabs, spiders, scorpions etc. are examples of arthropods. There are three main classes of arthropods as follows:
Insects: This includes mosquitoes, cockroaches, ants, flies, bees, moths, grasshoppers, beetles and butterflies
Crustaceans: This includes crabs, lobsters, shrimp and barnacles
Arachnids: This includes scorpions, spiders and mites
Further, a few other classes are onychophorans (velvet worms), diplopods (millipedes) and chilopods (centipedes).
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