Question
List the features of Phylum Nematoda fo the Animal Kingdom.
Solution
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.
(v) There are tissues but no real organs.
Examples. Ascaris (round worm), Ancylostoma (hook worm) and Wuchereria (filarial worm) causes elephantiasis.
Ascaris
