The rhythmic contractions responsible for propelling food through the digestive tract are called

A. elimination.
B. peristalsis.
C. mastication.
D. locomotion.


Answer: B

Nutritional Science

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What is the name of the rule that modifies the original meaning of the Delaney Clause?

a. GRAS list b. Bonnie Clause c. De minimis rule d. No-risk standard e. Precautionary Principle

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Maternal anemia occurs when a pregnant woman has a hematocrit ________.

A. below 45% B. below 33% C. below 50% D. below 60%

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Some species of animals fed low-calorie diets have increased life expectancies

a. True b. False Indicate whether the statement is true or false

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