Sharks have as skeleton that contains
elastin Epidermis calcium fur and fat marrow strength all matter collagen
A B C D E F G H
Sharks have a cartilage skeleton.
Sharks have as skeleton that contains a protein called collagen.
Sharks have as skeleton that contains (A) elastin (B) Epidermis (C) calcium (D) fur and fat (E) marrow (F) strength (G) all matter (H) collagen