Which of the following organisms requires factor X only on initial isolation but loses the requirement on subculture?
A) Aggregatibacter aphrophilus B) Francisella tularensis
C) Aggregatibacter actinomycetemcomitans D) Eikenella corrodens
A
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The systemic veins function by:
A. returning deoxygenated blood back to the heart. B. delivering oxygen-poor blood to the capillaries. C. returning oxygen-rich blood back to the left atrium. D. delivering deoxygenated blood to the capillaries.
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Which suturing technique maintains the aortic and venous cannulae?
a. figure of eight b. purse-string c. horizontal mattress d. vertical mattress
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