A) sharks
B) porpoises
C) goldfish
D) rays
Correct Answer: D
Solution :
Torpedo (electric ray) is a bottom-living marine fish, famous for discharging electricity, which is sufficient enough for stun preys such as small fishes etc. These are carnivorous fishes with smooth skin, large openings, the spiracles are situated behind the eyes and are used for taking in water for gaseous exchange. Both two pectoral fins are fused with the trunk and a pair of electric organs are situated on the dorsal side of the trunk region.
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