CBSE Class 9 Answered
give the characteristics of the following:
Asked by | 11 Oct, 2008, 02:58: PM
Expert Answer
i) Nematodes are bilaterally symmetrical, triploblastic and pseudocoelomate animals.
ii) Body is cylindrical, worm like.
iii) Body covered with a tough cuticle.
iv) Tissues are present but no real organs.
v) Most forms are parasitic but some are free-living.
vi) Alimentary canal straight and complete with mouth and anus.
vii) Several parasitic worms cause diseases like filariasis, ascariasis etc.
Answered by | 11 Oct, 2008, 06:42: PM
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