Animal KingdomHard
Question
Identify the correct statements from the following with reference to cartilaginous fishes :-
(A) In Males pectoral fins bear clasper
(B) Notochord is persistent throughout life
(C) Air bladder is absent so that they have to swim constantly to avoid sinking
(D) They have four pairs of gills, which are covered by an operculum on each side
(A) In Males pectoral fins bear clasper
(B) Notochord is persistent throughout life
(C) Air bladder is absent so that they have to swim constantly to avoid sinking
(D) They have four pairs of gills, which are covered by an operculum on each side
Options
A.(A), (B) and (C)
B.(C) and (D)
C.(A) and (B)
D.(B) and (C)