Topics: Microbiology Quiz
The Black Plague killed about 100 million people in the fourteenth century. The bacteria that caused the plague was carried by fleas on rats and traveled great distances. Which would have most directly limited the spread of the disease?
A. cleaner water sources
B. refrigeration of food and water
C. reduction in the rodent population
D. better medicines to treat infected individuals
Select your answer:
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Food and Nutrition › ViewWater is important for your body because:
A. it is a source of fibre
B. it is a source of energy
C. it can be a solid, a liquid or a gas
D. it can dissolve substances
Obstructive Lung Disease › View
What surrounds the alveoli?
A. oxygen
B. carbon dioxide
C. capillaries
D. bronchioles