class 10 mcq science
25 When you see the structure of the cell through compound microscope, which of the following is unseen
1. cell wall
2. cytoplasm
3. nucleus
4. electron
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24 This disease also affects human along with cattle
1. foot & mouth disease
2. anthrax
3. malaria
4. viral disease
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23 In pasteurisation milk is heated up to
1. 50C
2. 60C
3. 70C
4. 80C
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22 Invention of pasteurisation
1. edward jenner
2. louis pasteur
3. flemming
4. ronald ross
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21 Vector for 'Plasmodium' is
1. female anopheles mosquito
2. male anopheles mosquito
3. female culex mosquito
4. male culex mosquito
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20 The micro organism "plasmodium" causes
1. t.b
2. typhoid
3. malaria
4. polio
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19 Disease causing micro organisms are
1. vectors
2. pathgen
3. microbes
4. all
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18 The milkmaids who developed cowpox develop immunity to
1. typhoid
2. smallpox
3. t.b
4. all
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17 Small pox vaccine is invented by
1. edward jenner
2. ronald ross
3. louis pasteur
4. albert sabin
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16 Micro organisms present in root nodules of leguminous plants
1. rhizobium
2. bacillus
3. azatobactor
4. nostoc
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