Which of the following is a type of simple machine?

A. a bicycle
B. a pair of scissors
C. a screw
D. a shovel


Ans: C. a screw

Nutritional Science

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There are two circulatory systems that transport nutrients

from the small intestine. Name the two systems and what sorts of nutrients are transported from the small intestine in each system.

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Hormone replacement therapy reduces the risk for hip and spinal fractures

Indicate whether the statement is true or false

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Characteristics of a "competent eater" include being:

a. positive. b. comfortable. c. flexible with eating. d. matter of fact. e. All of the above

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Which food is least likely to promote tooth decay?

a. gummy bears b. caramel c. fruit juice d. milk e. apple slices

Nutritional Science