★ Circulation and Excretion Quiz
A human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb. To travel from the artery to the thumb and then back to the left ventricle, how many capillary beds must this RBC flow through?
A. 4
B. 3
C. 2
Select your answer:
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HFT Vitamins › ViewThis vitamin is not found naturally in plant based foods so vegans may struggle to get enough?
A. Vitamin A
B. Vitamin C
C. Vitamin B12
Normal Radiographic Anatomy › View
Loss of continuity of lamina dura at the alveolar crest indicates …
A. periodontal disease
B. periapical pathology
C. caries