______ are the Breathing center of the body?
______ are the Breathing center of the body?
A. Nose
B. Air
C. Lungs
D. None of these
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What is the main component of bones and teeth?
A. Calcium carbonate
B. Calcium phosphate
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CT Scan stand for__________?A. Computed Tomography Scan
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C. Computed Topography Scan
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Cooking gas is mixture of which two gases?A. Hydrogen and oxygen
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B. Larynx
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D. Trachea
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Phosphorus is an essential component of one of the following biological molecules:
A. Amino acids
B. Nucleic acids
C. Carbohydrates
D. None