________ are circular muscular rings which open and close in response to nerve input

A) Lumen B) Musculature C) Masticators D) Sphincters


Answer: D

Nutritional Science

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Explain the difference between heme and nonheme iron. How can the efficiency of absorption be increased for both types of iron?

What will be an ideal response?

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Orlistat is currently the only weight loss medication that has been FDA-approved for use by adolescents.

Answer the following statement true (T) or false (F)

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Which of the following describes average mineral intakes by sedentary adults in the U.S.?

a. Inadequate b. Adequate c. Excessive

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What is the most likely explanation for the impaired functioning of the GI tract resulting from folate deficiency??

A) ?insufficient bile production, thereby promoting fat malabsorption and diarrhea B) ?reduced mucosal cell replacement, thereby resulting in decreased GI functioning C) ?decreased enzymatic capacity in the intestines, thereby resulting in malabsorption D) ?decreased oxygen supply to body tissues, with the intestines being particularly affected because of their high metabolic activity

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