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Byju's Answer
Standard V
Science
Traits
Which of the ...
Question

Which of the following provide first line of defense?

A
Saliva
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B
Tears
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C
Lymph
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D
Mucus
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E
RBCs
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F
Sweat
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G
Keratin
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H
WBCs
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Solution

The correct option is G Keratin

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