A) Pristis
B) Torpedo
C) Trygon
D) Scoltodon
Correct Answer: B
Solution :
[b] Torpedo is a marine cartilaginous fish which produces 8-220 volt electric charge (current) depending on species. Their electric organs are modified lateral muscle plates innervatted by cranrial nerves. |
Trygon (sting ray) resembles electric ray in many aspects but is devoid of electricity discharging (or producing) organs. |
Scoliodon (dog fish) is known for its great sense of smell. Pristis or common saw fish (also known as carpenters shark) is charactesised by a long, narrow, flattened rostrum lined with sharp transverse teeth to resemble-a saw. |
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