Page 29 - Science Tour 3 (Workbook)
P. 29
Put ( ) or ( ):
1. The respiratory system starts with the nose. ( )
2. We inhale oxygen and exhale carbon dioxide. ( )
3. The diaphragm is a muscle above the two lungs. ( )
4. It is better to breathe through the mouth. ( )
5. The larynx is the voice box. ( )
6.The stomach is a part of the respiratory system. ( )
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