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Human Health and Disease

Long Answer Type

81. Do you think that friends can influence one to take alcohol/ drugs ? If yes, how may one protect himself/herself from such an influence ?

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82.

Draw a sketch of action of HIV in the body.

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Short Answer Type

83. Name two wide spread diseases caused by Aedes mosquitoes.

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84. What causes swelling of the lower limbs in patients suffering from filariasis ?

Swelling of lower limbs in patients suffering from filariasis is caused due to the pathogen Wuchereria bancrofti that live for many years in the lymphatic vessels of the lower limb.

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85. List any two adaptive features evolved in parasites enabling them to live successfully on their hosts.

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86. How do neutrophils acts as cellular barrier to pathogens in human ?

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One Word Answers

87. Name the cells in which the HIV multiplies after gaining entry into human body.

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Short Answer Type

88. How does saliva act in body defence ?

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One Word Answers

89. Name the type of cells that produce antibodies.

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Short Answer Type

90. How do virus infected cells provide immunity to healthy cells ?

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