Question
This about Class Amphibia is correct
(i) fertilization is internal
(ii) respiration is through gills only
(iii) body is divisible into head and trunk
(iv) heart is two chambered – one ventricle and one auricle
Options :
only (i)
(i), (ii) and (iv)
only (iii)
All are correct
Answer :
only (iii)
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