Class Notes On Phylum Aschelminthes (Round Worm)

Phylum Aschelminthes (Round Worm) –

- Free living or parasitic, aquatic and terrestrial.

- Bilateral symmetry and Triploblastic.

- Pseudocoelomate.

- Muscular pharynx.

- Male smaller and thinner than female.

- Fertilisation internal, development direct or indirect.

- eg. Ascarislumbricoides, Wucherariabancroftiietc.