OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An infectious disease is usually:
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caused by genes
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caused by lifestyle choices
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caused by microbes
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caused by environmental factors
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Explanation:
Detailed explanation-1: -Infectious diseases are disorders caused by organisms-such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They’re normally harmless or even helpful. But under certain conditions, some organisms may cause disease.
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