Question

Question 7
Which of the following characters does not belong to fishes?
(10 Four chambered heart
(C) Exoskeleton of scales, and mesonephric kidneys
(6) Ten pairs of cranial nerves
(4) Respiration by gills​

Answer 1

Answer:

four chambered heart...............

Answer 2

HERE IS YOUR ANSWER:-

$four \: chambered \: heart$