Which of the following is the way that HIV infects the cell?
a. The GP120 on the HIV virion binds CD4 and the TCR of the T cell.
b. The GP 41 on the HIV virion binds the CD4 molecule and CCR5 on the T cell.
c. The GP120 on the virion binds the CD4 and the CCR5 on the T cell.
d. none of the above
C
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During acute appendicitis, the contribution of the somatosensory nociceptive afferents is which of the following?
A. Regulation of visceral function B. Production of skeletal muscle guarding to protect the appendix C. Modulation of respiratory function D. Signaling visceral distress to the brain E. Signaling conscious awareness of pain in the umbilical region
Sunscreens should:
A. protect against UVA rays B. protect against UVB rays C. be water proof or water resistant D. applied frequently E. all of the above
When Lexi sees her closest friend drinking too much at a party, she is likely to attribute it to her friend ____.?
A) ?having "alcoholic" genes B) ?being under a lot of stress C) ?being undisciplined D) ?simply liking to get drunk E) ?being socially inadequate
Supine means:
a. Lying on the back b. Conducting toward a structure c. In front of the body d. Lying on the belly e. Pertaining to the side