Question

The skeleton of a vertebrate is

a. internal and made of bones.
b. made of muscle and very strong.
c. surrounded by a hard shell.
d. controlled by fluid pressure. Reset Selection

Answer 1

The answer is a. internal and made of bones.

The skeleton of the vertebrate is internal (endoskeleton) and it develops within the skin. It is made of bones, relatively rigid structures, joined by more flexible structures.