Which of the following is a general term for a substance to which the body may have an anaphylactic reaction?

A) Antibody B) Allergen C) Pyrogen D) Pathogen

B

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The fibers that carry electrical impulses directly to ventricular muscle cells are the:

A) Purkinje's network B) Fascicles network C) Bundle network D) Systemic network

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Which of the following is NOT a factor that affects the strength of concrete?

A. Aggregates B. Admixtures C. Reinforced concrete D. Water-to-cement ratio

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