List the features of Phylum Nematoda fo the Animal Kingdom.

Phylum Nematoda (Aschelminthes) (round or thread worms)

Main Features :

(i) Most of the Aschelminthes are small cylindrical or round worms.

(ii) Body cavity is not a true coelom. A pseudocoelom is present.

(iii) Body is bilaterally symetrical and triploblastic.

(iv) Sexes are separate.

Examples. Ascaris (round worm), Ancylostoma (hook worm) and Wuchereria (filarial worm) causes elephantiasis.

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