Which of the following possesses electric organs and belongs to class chondrichthyes?
A. Torpedo
B. Petromyzon
C. Trygon
D. Exocoetus
Correct Answer :
A. Torpedo
Animals that belong to class chondrichthyes are marine with streamlined body and have cartilaginous endoskeleton. Some of them have electric organs (e.g., Torpedo) and some possess poison sting (e.g., Trygon).