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81. A boy is not able to see in the night. Which kind of vitamins you suggest him to take? (NTSE WAndhra Pradesh, Stage-I, 2016-17)
Calciferol
Tocopherol
Retinol
Riboflavin
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82. Which of the following statements are true about respiration? (i) Hemoglobin has greater affinity for CO2 than O2 (ii) The gaseous exchange takes place in the alveoli. (iii) During inhalation, ribs move inward and diaphragm is raised. (iv) Hemoglobin has greater affinity for 02 than CO2 (NTSE Andhra Pradesh, Stage-I, 2016-17)
(ii) and (iv)
(i) and (iii)
(ii) and (iii)
(i) and (ii)
83. Some organs of man have their own specific functions but carry out excretion as a secondary function. Identify them. (NTSE Andhra Pradesh, Stage-I, 2016-17)
Lungs, Kidney, Nephron
Liver, Skin, Lungs
Skin, Kidney, Intestine
Intestine, Liver, Kidney
84. Which of the following harmful products is not produced in the biochemical reactions of the cell of living organisms? (NTSE Maharashtra, Stage-I, 2016-17)
Urea
Uric acid
Ammonia
Lymph
85. Select the correct sequence of the steps of human nutrition (NTSE Maharashtra, Stage-I, 2016-17)
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