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Card 6

Front

why did it take people so long to accept the ideas of semmelwiss?

Back

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Card 7

Front

how are many pathagons prevented from entering the body?

Back

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Card 8

Front

how do white blood cells defend the body?

Back

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Card 9

Front

why are antibiotics only able to kill bacteria?

Back

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Card 10

Front

why do industrial labortories use 35 degresinstead of 25 degres as in schools?

Back

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Card 11

Front

how do you make sure unwanted microorganisms do nt contaminate a pure culture of bacteria?

Back

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Card 12

Front

why do pathagons spread rapidly?

Back

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Card 13

Front

how does natural selection cause resistant populations of bacteria develop?

Back

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Card 14

Front

what is ment by vaccination?

Back

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Card 15

Front

what are the advanatages and disadvanatges of vaccinations?

Back

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