Chapter 1 Bones and Muscles

The bones form a structure called a ....

The ..... supports upper part of the body.

The bones in our legs and arms help us to ..... around.

The ..... protects our brain.

The name of this bone is ......

The other name of the spine is ......

Our bones and muscles work ...... to help us move

Animals that have a backbone are known as .......

An exoskeleton is found on the ...... of an animals such as crab.

This animal is included in the group of ......