Which among the following is the largest phylum in the Animal Kingdom in respect to number of species?

Options

A. Annelida
B. Platyhelminthes
C. Chordata
D. Arthropoda

Answer

D

Explanation

Arthropoda is the largest phylum in respect to number of species. Annelida, Platyhelminthes and Arthropoda are invertebrates which have 'no notochord' a stiff rod like structure which serves as an internal skeleton while chordates have notochord.