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MICROBIO 303 Exam queries and answers graded A+

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MICROBIO 303 Exam queries and
answers graded A+
Why study microbiology? - ANS✅✅microbes are essential to human life

How many bacteria cells on/in human body? - ANS✅✅100 trillion

What do our normal microbiota do? - ANS✅✅- defend

- stimulate immune system

- protects from allergies and autoimmune disease

- detoxify

"old friend" hypothesis - ANS✅✅early exposure to certain microbes help body distinguish friendly
and harmful microbes

what hosts symbiotic microbes? - ANS✅✅all macroorganisms

infectious disease is caused by microbe but..... - ANS✅✅not all microbes cause disease

has the death rate of infectious diseases increased or decreased? why? - ANS✅✅decreased due to
health departments, sanitation, antibiotics, vaccines

what are some diseases that have been eradicated? - ANS✅✅polio and smallpox

the plague killed what portion of European population - ANS✅✅1/3

emerging infectious disease - ANS✅✅infectious disease that has become more common in last 35
years

what causes emerging disease - ANS✅✅- change in lifestyle

- decline in vaccinations

- pathogens become resistant

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Institution: Liberty University
Course: Microbiology 303

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Type: Exam (elaborations)
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MICROBIO 303 Exam queries and answers graded A+

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