Anaerobic bacteria must have oxygen to grow and live
a. True
b. False
Indicate whether the statement is true or false
False
RATIONALE: Aerobic bacteria must have oxygen to grow and live.
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Particles associated with electromagnetic radiation that have neither mass nor electric charge are
a. ions. b. negatrons. c. positrons. d. x-ray photons.
When performing a lateral L5-S1 projection, a positioning atlas recommends a 5° caudal angle with centering to a point 1½ inches inferior to iliac crest. After palpating the patient, you remove the caudal angle because the inter-iliac line is perpendicular with the image receptor. Where should the central ray enter when shifted to compensate for the removal of the angle?
A. 2 inches inferior to iliac crest
B. 
inches inferior to iliac crest
C. 1 inch inferior to iliac crest
D. 
inch inferior to iliac crest