Body Building! Muscles

Questions:

1. Do Muscles pull or push?
Muscles only pull.

2. What happens when one muscle of the pair contracts (shortens)?
When one muscle of the pair contracts the other one relaxes.

3. In what ways is the model accurate?
It shows how muscles are located in your body specifically and it also shows how muscles contract and relax.

4. In what ways is the model inaccurate?
It is inaccurate because in real life muscles contract but the rubberband only gets shorter.