10th Class Chapter No.1
Biology MCQs Online Quiz
All MCQs Selected from Old Board Papers
Best MCQs for Board Examination
Total MCQs ( in this Quiz ) = 50
41. In smokers tooth loss is:
A. 2 to 3 times higher than non-smokers
B. 4 to 5 times higher than non-smokers
C. 6 to 7 times higher than non-smokers
D. 8 to 9 times higher than non-smokers
Answer:
A. 2 to 3 times higher than non-smokers
42. Larynx is present:
A. between pharynx and trachea
B. between nostrils and nasal cavities
C. between glottis and epiglottis
D. at the base of the tongue
Answer:
A. between pharynx and trachea
43. The other name of larynx is:
A. sound box
B. voice box
C. aid box
D. air box
Answer:
B. voice box
44. Two pair of fibrous bands across the larynx are called:
A. Voice box
B. Vocal cord
C. Pelvic cord
D. Spinal cord
Answer:
B. Vocal cord
45. How vocal cords vibrate and produce sounds?
A. When air passes through vocal cords
B. When food passes through them
C. When liquid passes through them
D. When breathing stops
Answer:
A. When air passes through vocal cords
