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The Living World 8th Edition by George Johnson
النسخة 8الرقم المعياري الدولي: 978-0078024214The Living World 8th Edition by George Johnson
النسخة 8الرقم المعياري الدولي: 978-0078024214 تمرين 11
Polio virus attacks nerve cells, hepatitis attacks the liver, and AIDS attacks white blood cells. How does each virus know which cell to attack?
A) They enter all cells but can reproduce in only certain types.
B) They key in on certain cell surface molecules characteristic of each cell type.
C) The virus in each case is derived from that kind of cell.
D) The cell types practice virus-specific phagocytosis.
If a viral disease like influenza could kill more than 40 million people over 19 months in 1918-19, why do you suppose the killing ever stopped? What prevented H1N1 flu from continuing its lethal assault on humanity?
A) They enter all cells but can reproduce in only certain types.
B) They key in on certain cell surface molecules characteristic of each cell type.
C) The virus in each case is derived from that kind of cell.
D) The cell types practice virus-specific phagocytosis.
If a viral disease like influenza could kill more than 40 million people over 19 months in 1918-19, why do you suppose the killing ever stopped? What prevented H1N1 flu from continuing its lethal assault on humanity?
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Viruses are the smallest microbes known,...
The Living World 8th Edition by George Johnson
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