" Scoliodon is called Dog Fish because of its "

Scoliodon is also called

Scoliodon is called dogfish due to one of its follwing characteristics

Scoliodon is commonly called dogfish due to one of its following characteristics

Petromyzon is not a true fish because of

Petromyzon is not a true fish because of

Assertion :- Scoliodon (Dog fish) have to swim constantly to avoid sinking. Reason :- It does not have air bladder.

In Scoliodon teeth are modified

In Scoliodon teeth are modified