Question

Write the important features of phylum Aschelminthes (Nematoda).

July 20, 2024

Answer

(i) Most of them are small and cylindrical. So they are also called as round worms.

(ii) The body size ranges from microscopic to a few centimetres in length.

(iii) They all are mainly heterotrophic animals.

(iv) They are triploblastic.

(v) Body cavity has a true coelom.

(vi) Respiratory and circulatory systems are absent.

(vii) They have a complete alimentary canal.

(viii) Sexes are separate.

Examples: Ascaris (roundworm), Enterobius, and Wuchereria (filarial worm).

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