Given what we know, the statement that provides an example of innate immunity is "the integumentary system acting as a physical barrier".
Innate immunity refers to the natural defenses with which we are born. The first statement mentions how the integumentary system, which is the hair, skin, nails, etc., acts as a physical barrier to give protection. Since we are born with these, it is an example of innate immunity.
Therefore, given these facts, we can confirm that the statement that provides an example of innate immunity is "the integumentary system acting as a physical barrier".
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