A shark's skeleton is different from a goldfish because
a. the shark's skeleton is very dense.
b. the shark's skeleton is quite rigid.
c. the shark's skeleton is composed of bone.
d. the shark's skeleton is composed of cartilage.

Answer :

MaddisonB
The skeleton of a shark is made out of cartilage.
kittygakin1
d. the sharks skeleton is composed of cartilage. 

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