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Byju's Answer
Standard XI
Economics
Shapes of Average and Marginal Cost Curves in the Short Run
Burst the bub...
Question

Burst the bubbles containing the first line of defence of the body against pathogens.

A
Mucus
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B
Skin
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C
Tears
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D
WBCs
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E
Cilia
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F
Saliva
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G
RBCs
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H
Nerve Cells
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Solution

The correct option is F Saliva

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Shapes of Average and Marginal Cost Curves in the Short Run
Standard XI Economics
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