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Creado por Glixxy 805
hace más de 3 años
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What's the four roles of a skeleton?
Where is the femur?
Muscles can......?
Ernie says: ''When a muscle is not in use
it gets longer and contracts! Heh Heh...''
Is he right?
Ernie says: ''Uh... there are three different types of joints... they are Hinge, Fixed, Ball and... and...''
Can you help him?
What protects your vital organs?