What are the two narrow tubes that lead to the lungs?
Moving Materials

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Bronchi
2.
FLASHCARD QUESTION
Front
Which system is responsible for gas exchange between the body and the environment?
Back
Respiratory system
3.
FLASHCARD QUESTION
Front
What system is made up of the heart, blood, and blood vessels?
Back
Circulatory system
4.
FLASHCARD QUESTION
Front
What is the tubelike passageway at the top of the throat that receives air, food, and liquids?
Back
Pharynx
5.
FLASHCARD QUESTION
Front
What gas do you breathe out?
Back
Carbon dioxide
6.
FLASHCARD QUESTION
Front
What is the main function of the respiratory system?
Back
To facilitate the exchange of oxygen and carbon dioxide.
7.
FLASHCARD QUESTION
Front
What muscle helps in the process of breathing by contracting and relaxing?
Back
Diaphragm
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