In Cyclostomata, the cranium and vertebral column is
Match the entries of Column 1 with those of column 2.
Column 1
Column 2
A. Archeopteryx
(i) Electric organ
B. Cyclostomata
(ii) Fossil birds
C. Mammals
(iii) Dual habitat
D. Torpedo
(iv) Jawless vertebrates
E. Amphibia
(v) Mammary gland