| 61. | Water molecules move rapidly hence possess |
| a. | potential energy |
| b. | chemical energy |
| c. | kinetic energy |
| d. | electrical energy |
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Answer: (c).kinetic energy
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| 62. | Prothrombin protein acts as a catalyst and help in blood |
| a. | clotting |
| b. | flow |
| c. | pH |
| d. | consistency |
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Answer: (a).clotting
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| 63. | Immunity which is achieved by introduction of antigen artificially in body is called |
| a. | active immunity |
| b. | passive immunity |
| c. | artificially induced immunity |
| d. | auto-immunity |
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Answer: (c).artificially induced immunity
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| 64. | A degenerative arterial change which is associated with advancing age is called |
| a. | arteriosclerosis |
| b. | atheroma |
| c. | lipoproteins |
| d. | fructoproteins |
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Answer: (a).arteriosclerosis
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| 65. | Normal flow of blood is facilitated by muscular activity of |
| a. | digestion |
| b. | breathing |
| c. | excretion |
| d. | pumping of heart |
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Answer: (b).breathing
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