Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

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 ?

Yes, Friends can influence one to take drugs/alcohol. The undue peer pressure and a race to be trendy and cool may influence one to take alcohol/drugs.
One may protect himself/herself from such an influence by adopting the following methods :

(1) By practising good habits and avoiding undue peer pressure.

(2) By attaining proper education and counseling.

(3) By seeking help from the parents and teachers.

(4) By maintaining good company.

(5) By seeking medical help if required.

402 Views

82.

Draw a sketch of action of HIV in the body.

175 Views

Short Answer Type

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

192 Views

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

371 Views

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

439 Views

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

197 Views

One Word Answers

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

450 Views

Short Answer Type

88. How does saliva act in body defence ?

144 Views

One Word Answers

89. Name the type of cells that produce antibodies.

108 Views

Short Answer Type

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

119 Views