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Biology, 19.09.2019 05:40 trevorhenyan51

Which statement best describes common communicable diseases?
a.
most communicable diseases are either bacterial or viral and infect the respiratory tract.
b.
all communicable diseases are viruses that cause pneumonia.
c.
most communicable disease are bacteria and viruses that infect the intestinal tract.
d.
all communicable diseases are bacteria that grow in the respiratory tract.
after reading this:
a communicable disease is an illness transmitted through contact with microorganisms. people, animals, food, surfaces, and air can all be carriers of the microorganisms that pass infectious illnesses from one host to the next. the exchange of fluids or contact with a contaminated substance or individual may be enough to allow a communicable disease to spread.
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Which statement best describes common communicable diseases?
a.
most communicable disea...
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