Question: 138. Match List – I with List – II.
| List – I | List – II |
|---|---|
| (a) Metamerism | (i) Coelenterata |
| (b) Canal system | (ii) Ctenophora |
| (c) Comb plates | (iii) Annelida |
| (d) Cnidoblasts | (iv) Porifera |
Choose the correct answer from the options given below.
(a) (iv) (b) (iii) (c) (i) (d) (ii)
(a) (iii) (b) (iv) (c) (i) (d) (ii)
(a) (iii) (b) (iv) (c) (ii) (d) (i)
(a) (iv) (b) (i) (c) (ii) (d) (iii)
Answer: Option (3)
Explanation:
Metamerism refers to segmentation of the body into repeated units, which is a characteristic feature of Annelida.
The canal system is a defining feature of Porifera, where water flows through ostia, canals and osculum.
Comb plates are eight rows of ciliated plates present in members of phylum Ctenophora.
Cnidoblasts are specialized stinging cells found exclusively in Coelenterata.
Thus, the correct matching is (a)–(iii), (b)–(iv), (c)–(ii), and (d)–(i),
corresponding to option (3).