Emery believes mucus is unhealthy, so he is always spitting it out. Explain to Emery why mucus produced by the GI tract is beneficial

What will be an ideal response?


The lining of the GI tract called the mucosa produces mucus. Mucus helps to protect the lining of the GI tract from rough substances in food and from digestive enzymes. Mucus also lubricates the lumen, allowing food to slide through easily.

Biology & Microbiology

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The main force that moves blood throughout the system of blood vessels is

a. arterial blood pressure. b. skeletal muscle action. c. smooth muscle action. d. valve action. e. venous blood pressure.

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Foraminiferans are Rhizarians

______________ Indicate whether the statement is true or false.

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Protein breakdown produces ____, which requires a large amount of water to flush out of the body.

A. nitrogen gas B. carbon dioxide C. ammonia D. carbon monoxide E. oxygen

Biology & Microbiology

Transport Protein

What will be an ideal response?

Biology & Microbiology