1. Tardigrade
  2. Question
  3. Biology
  4. Except skin, other physical barriers which also help to prevent the entry of the microorganisms are mucus coating of the epithelium lining of I. the respiratory tract. II. the gastrointestinal tract. III. the urogenital tract. Choose the correct option.

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Q. Except skin, other physical barriers which also help to prevent the entry of the microorganisms are mucus coating of the epithelium lining of
I. the respiratory tract.
II. the gastrointestinal tract.
III. the urogenital tract.
Choose the correct option.

Human Health and Disease

Solution:

Correct answer is (d) I, II and III