Which are characteristics of type O blood?
a: Has anti-A antibodies
b: Has anti-B antibodies
c: Has surface antigen O on its erythrocytes
d: Has surface antigen A on its erythrocytes
e: Has neither surface antigen A nor B on its erythrocytes
A. a, b, c
B. a, b, e
C. b, c, e
D. b, c, d
E. c
B
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The last part of the colon is called the ____________________
Fill in the blank(s) with correct word
Which component of the ECG represents the repolarization of the ventricles?
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