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Skeletons and muscles - Quiz

1.

Which part of your skeleton protects your brain?

2.

Which part of your skeleton protects your heart and lungs?

3.

As you grow, your skeleton ...

4.

Which of these animals has its skeleton on the outside of its body?

5.

How does your arm bend up and down?

6.

Muscles always work in pairs. When one contracts, the other ...

7.

Which of these things is NOT true about your skeleton?

8.

Why do you think some animals, like crabs and insects, shed their outer skeletons?

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