| Questions | Answers |
|---|---|
| Which is NOT one of the systems in the human body? | brain |
| Why do we need bones? | structure and protect organs |
| How can you tell that bones are alive? | they grow |
| What are the two ways muscles can move? (CHOOSE 2) | Relax |
| What are the 3 kinds of muscles? (CHOOSE 3) | Skeletal |
| Why is the spinal cord so important? | It protects the nerves |
| How does the oxygen you breathe in end up in you blood? | the alveoli in the lungs |