Multiple choice

The whole skeleton systems of a shark is made of

  1. bones

  2. cartilage

  3. ligaments

  4. tendons
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sharks have skeletons made entirely of cartilage rather than bone, which makes them lighter and more flexible than bony fish. This type of skeleton is characteristic of cartilaginous fish (Chondrichthyes), a group that also includes rays and skates. Cartilage is a firm but flexible connective tissue that allows sharks to swim efficiently and maneuver quickly through water. Their cartilage skeleton also heals more slowly than bone when injured.

Keep practicing — related questions