Write three characteristics each of the following groups of animals:
Q. Write three characteristics each of the following groups of animals:
(a) Platyhelminthes
(b) Nematoda
Ans.
(a) Platyhelminthes :
(i) Bilaterally symmetrical
(ii) No body cavity
(iii) Dorsiventrally flattened
(iv) Flatworms / Free living or parasitic
(v) Triploblastic (Any 3)
(b) Nematoda :
(i) Bilaterally symmetrical
(ii) Triploblastic
(iii) Tissue level of organisation, but no real organs
(iv) Pseudocoelom
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