What is the least common blood type in the United States?
A. Type A
B. Type B
C. Type AB
D. Type O
E. All four blood types are found in almost equal percentages in the United States.
Answer: C
You might also like to view...
Which of the following substrates is NOT safe for reptiles?
a. wood chips c. pellets b. sand d. newspaper
Relative to veins with similar circumferences, arteries contain more ________.
A. endothelial cells B. valves C. smooth muscle D. two of the above
The primarily hydrophilic leader sequence of secretory proteins allows it to be inserted into the cisterna of the endoplasmic reticulum.
Answer the following statement true (T) or false (F)
The postganglionic sympathetic neurons innervating the gastrointestinal tract lie in which ganglia?
A. dorsal root ganglia B. nodose ganglia C. ventral horn of the spinal cord D. paravertebral ganglia E. prevertebral ganglia