Question

Match the following columns and select the correct option.

	Column-I		Column-II
(a)	Scales and paired fins absent	(i)	Torpedo
(b)	Claspers on pelvic fins of males	(ii)	Cyclostomes
(c)	4 pairs of gills covered with operculum	(iii)	Chondrichthyes
(d)	Electric organs	(iv)	Osteichthyes

• A. (a) (b) (c) (d)
  (iii) (iv) (i) (ii)
• B. (a) (b) (c) (d)
  (iv) (ii) (iii) (i)
• C. (a) (b) (c) (d)
  (i) (iv) (iii) (ii)
• D. (a) (b) (c) (d)
  (ii) (iii) (iv) (i)

Answer 1

The correct option is D (a) (b) (c) (d)

(ii) (iii) (iv) (i)
Body of cyclostomes is devoid of scales and paired fins. Gill slits are separate and without operculum in Chondrichthyes.
Pelvic fins bear claspers in male cartilaginous fishes. Torpedo is known as electric ray.