Question

13 Which of the following is not an example of a cartilaginous fish?
Sharks
Skates
Rays
Tilapia

14 Which of these is an example of a bony fish?
Sharks
Skates
Carp
Rays

15 Which of these is an example of jawless fishes?
Carp
Lamprey
Tilapia
Skates

Answer 1

13. Tilapia is a bony fish. The rest are cartilaginous
14.Carp is a bony fish. The rest are cartilaginous
15.Lamprey is a jawless fish. The rest are representatives of true fishes, either cartilaginous (skates) or bony (carp, tilapia)