Is a viscous solution that lubricates and protects the gastrointestinal tract.

Answer;

Mucus

Mucus is a viscous solution that lubricates and protects the gastrointestinal tract.

Explanation;

-Mucus is a viscous colloid that contain inorganic salts, antiseptic enzymes , immunoglobulins, and glycoproteins such as lactoferrin and mucins, which are produced by goblet cells in the mucous membranes and submucosal glands.

-In the gastrointestinal tract, mucus is used as a lubricant for materials that must pass over membranes, e.g., food passing down the esophagus. A layer of mucus along the inner walls of the stomach is vital to protect the cell linings of that organ from the highly acidic environment within it.

on the planet jupiter, the acceleration due to gravity is approximately 26 m s2 , roughly 2.7 times the acceleration due

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