Match the following columns and select the correct option:
Column-I (a) Choanocytes (b) Radula (c) Comb plates (d) Epidermal scales
Column-II (i) Ctenophora (ii) Mollusca (iii) Porifera (iv) Reptilia
(iv) (i) (ii) (iii)
(iii) (ii) (i) (iv)
(ii) (i) (iii) (iv)
(i) (iii) (ii) (iv)
(a) Choanocytes (collar cells) are the characteristic lining of the spongocoel and canals in members of Phylum Porifera (iii) . (b) Radula is a file-like rasping organ for feeding present in Phylum Mollusca (ii) . (c) Comb plates are the eight external rows of ciliated structures used for locomotion in Phylum Ctenophora (i) . (d) Epidermal scales or scutes cover the dry, cornified skin of Class Reptilia (iv) .
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