A common cold differs from pneumonia in that
Correct answer: A. The common cold is a mild viral illness, while pneumonia is a serious infection that affects the lungs.
- A. The common cold is a mild viral illness, while pneumonia is a serious infection that affects the lungs.
- B. The common cold mainly affects the digestive system, while pneumonia only affects the heart.
- C. The common cold is caused by bacteria, while pneumonia is always caused by viruses.
- D. The common cold is usually treated with antibiotics, while pneumonia never requires them.
Explanation
In conclusion, the main difference between the common cold and pneumonia is that the common cold is a mild viral infection of the upper respiratory tract, while pneumonia is a potentially serious infection that affects the lungs and may be caused by bacteria, viruses, or fungi. The incorrect options confuse organ systems, causes, and treatments, but only Option A correctly states the key difference.
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Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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