Calcium ions and ________ have an effect on nearly every aspect of the clotting process

A) vitamin K
B) vitamin A
C) vitamin D
D) vitamin E
E) thiamin


A) vitamin K

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Although not as strong as previous cements, portland cement is less expensive and therefore more widely used.

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

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____ systems use the natural tendency of hot water to rise to move heated water to the top of collectors and then to the storage tank from where it is circulated when faucets are turned on in the house.

A. Indirect B. Thermosiphon C. Active D. Batch heater

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? Identify and state the historical significance of Phyllis Schlafly.

What will be an ideal response?

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What is commonly done when a drop-in refrigerant is placed in operating equipment?

a. A crankcase heater is installed. b. The oil is replaced. c. A leak-detecting dye is added. d. The refrigerant piping is replaced.

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