People in ancient China, India, and Turkey innouculated against smallpox by:
A) the historically early use of needle-tipped syringes.
B) dragging a string loaded with cowpox through a cut on a child's arm.
C) blowing smallpox scab powder into a person's nose or cutting his/her skin and jabbing in fluid collected from a pustule on a person with a mild smallpox infection.
D) blending fluid collected from smallpox pustules with llama milk and then drinking that.
E) No answer is correct; they did not know enough to innoculate themselves.
Correct Answer:
Verified
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A) antibodies.
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A)
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A) natural selection.
B)
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A) natural selection.
B)
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