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81. What fraction of Body’s calcium is stored in Bones and teeth?

(A) 85%
(B) 90%
(C) 94%
(D) 99%

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82. Which among the following is NOT a true bast fiber?

(A) Jute
(B) Hemp
(C) Flax
(D) Cotton

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83. The metals in which among the following groups are required in maximum quantities in a living organism?

(A) Potassium, Manganese, Molybdenum, Calcium
(B) Potassium, Molybdenum, Copper, Calcium
(C) Pottassium,Sodium, Magnesium, Calcium
(D) Sodium, Magnesium, Copper, Manganese

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84. Which among the following helps to determine the character of a cell?

(A) Nucleus
(B) Chromosomes
(C) Genes
(D) Plasma

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85. What name has been given to the fear of crossing roads?

(A) Arthrophobia
(B) Atychiphobia
(C) Aichmophobia
(D) Agyrophobia

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