TREE DISEASES AND PESTS
COMMON TREE DISEASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the function of a physical defence?
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Prevent entry and spread of a pathogen
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Kill a pathogen
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Deter a pathogen
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None of the above
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Explanation:
Detailed explanation-1: -The skin, mucous membranes, and endothelia throughout the body serve as physical barriers that prevent microbes from reaching potential sites of infection. Tight cell junctions in these tissues prevent microbes from passing through.
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