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  • Immune System
  • Which of the following does not protect any body surface?
Multiple choice

Which of the following does not protect any body surface?

  1. Skin

  2. Mucus

  3. Gastric acid

  4. Salivary amylase

  5. Gut microflora

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The enzyme splits starch and is important for digestion, but not for protection.

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