Which of the following is not a primary taste sensation?
A. Sour
B. Pungent
C. Sweet
D. Salty
Answer: B
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The pectoralis major muscle is named for its action.
Answer the following statement true (T) or false (F)
The following are steps in the cell-mediated immune response. What is the correct sequence for these steps? 1. Several cycles of mitosis occur. 2. Antigen is engulfed and presented by a macrophage. 3. Cytotoxic T cells migrate to focus of infection. 4. T cells with specific receptors recognize the antigen. 5. T cells differentiate into cytotoxic T cells or T memory cells. 6. Cytotoxic T cells
release perforin and/or lymphotoxin. A) 4, 1, 5, 3, 6, 2 B) 2, 4, 1, 5, 3, 6 C) 1, 2, 4, 5, 3, 6 D) 3, 2, 4, 1, 5, 6 E) 3, 6, 4, 5, 1, 2
Thick filaments
A) form the spindle apparatus during cell division. B) form intermediate filaments to stabilize organelle position. C) interact with actin to produce contractions. D) are called neurofilaments in neurons. E) are stable structures that do not change once formed.
What is the area that contains only cones for the most acute vision?
A. Blind spot B. Bipolar cell layer C. Optic disk D. Vitreous body E. Fovea centralis