Which of the following statements (i) to (v) are incorrect? (i) Parapodia are lateral appendages...

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Which of the following statements (i) to (v) are incorrect?
(i) Parapodia are lateral appendages in arthropods used for swimming.
(ii) In molluscs radula is responsible for the process of excretion.
(iii) Aschelminthes are dioecious.
(iv) Echinoderm adults show radial symmetry.
(v) Ctenophorans are diploblastic.
(a) (i) and (ii)
(b) (i) and (iii)
(c) (i), (iv) and (v)
(d) (iii) and (v)
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