Question

Match Column - I with Column - 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) (I) (II) (III)
• B. (IV) (III) (I) (II)
• C. (IV) (III) (I) (II)
• D. (III) (IV) (II) (I)

Answer 1

The Correct Option is D

Let's match List - I with List - II by identifying the correct biological concepts linked to each group. 

1. Metamerism: This is a characteristic of organisms where the body is segmented into a series of repetitive parts. Typically, metamerism is found in the phylum Annelida. Therefore, Metamerism matches with option (III) Annelida.
2. Canal system: This is a feature of the phylum Porifera (sponges), where it facilitates water circulation and feeding. Thus, the Canal system matches with option (IV) Porifera.
3. Comb plates: These are locomotive structures found in Ctenophora (comb jellies), used for movement. Hence, Comb plates match with option (II) Ctenophora.
4. Cnidoblasts: These specialized cells contain nematocysts and are characteristic of the phylum Coelenterata (Cnidaria), which includes jellyfish, corals, etc. Therefore, Cnidoblasts match with option (I) Coelenterata.

Therefore, the correct matching is:

(a)	Metamerism	(III)	Annelida
(b)	Canal system	(IV)	Porifera
(c)	Comb plates	(II)	Ctenophora
(d)	Cnidoblasts	(I)	Coelenterata

The correct answer from the given options is (III) (IV) (II) (I).

This solution links each biological feature with its corresponding phylum, yielding clear and conceptually sound connections.