Respuesta :

Iqta

Answer:

immune and respiratory

Explanation:

  • Mucus is a transparent, watery secretion produced by the respiratory system particularly, the mouth, sinuses, throat, lungs and intestines.
  • Mucin, a major component of mucus, can act as protective substances and lubricants.
  • Mucus produced in the nose and sinuses helps trap pathogenic bacteria in the lining of the respiratory tract.
  • This trapping of pathogens is part of the innate immune system and the body's first line of defense against pathogens.
  • Mucins have also been known to help break down bacterial biofilms i.e (a thick layer of bacteria).

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