The members of Chondrichthyes have to swim constantly to avoid sinking due to

Why do chondrichthyes swim constantly?

Members of Chondrichthyes have to swim continuously , because they

Members of Chondrichthyes have to swim continuously , because they

Assertion: Chondrichthyes swim constantly in water body to avoid sinking. Reason: In chondrichthyes, air bladder is not found.

Read the following statement a. Teeth are backwardly directed b. Their jaws are very powerful c. these animals are predaceous d. They have to swim constantly to avoid sinking Here the are talking about

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

Assertion: Osteichthyes fishes swim constantly to avoid sinking . Reason: Air bladder is absent in fishes of Class Osteichthyes.

Assertion: Osteichthyes fishes swim constantly to avoid sinking . Reason: Air bladder is absent in fishes of Class Osteichthyes.

Assertion: Osteichthyes fishes swim constantly to avoid sinking . Reason: Air bladder is absent in fishes of Class Osteichthyes.