Jain Biology ► [01] Biology : Science Of Living Organisms ► 5. Phylum Nematoda (Nemathelminthes):

Posted: 15.09.2009

These are unsegmented round worms. There is a complete alimentary canal with a mouth and an anus; circulatory and respiratory systems are absent; nervous system is in thc form of a nerve ring; sexes are usually separate. Many are parasitic in animals and cause serious diseases. There are many types as : Ascaris, common intestinal parasite, 12 to 27 cms. in length; Guinea worm causes disease in men called 'naru'; is thread-like and is as long as 90 cms.



Edited by:
Prof. Muni Mahendra Kumar

Ladnun-341 306 (Rajasthan, India)

First Edition: 2008

Printed at: Shree Vardhman Press, Naveen Shahdara, Delhi- 110032

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