Which of the following is NOT normally a route of transmission of HIV/AIDS?
A. Via breast milk during lactation
B. Across the placenta from an infected mother to her fetus during pregnancy or delivery
C. Kissing or contact with items contaminated by the saliva of an infected individual
D. Transfer of contaminated blood or blood products from one person to another
E. Unprotected sexual intercourse with an infected partner
Answer: C
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Which of the following is a barrier to proper nutrition?
A) Decreased saliva B) Tooth loss C) Difficulty swallowing D) All of the above
The vertebral arch is formed by the pedicles and the
A) transverse spinous processes. B) dorsal spinous processes. C) laminae. D) costal facets. E) intervertebral disc.
The hormone that decreases the concentration of calcium in the blood is
a. thyroxine b. tri-iodothyronine c. calcitonin d. both a and b e. all of the above
The various shades of human skin color are determined by the amount of _____.?
A) ?keratin in the skin B) ?melanin in the skin C) ?papillae D) ?Merkel cells