All of the following are true of perspiration produced by merocrine sweat glands except that it
A) is more than 99 percent water.
B) contains electrolytes and waste products.
C) helps cool the body when it evaporates.
D) helps to prevent bacteria from colonizing the skin.
E) produces the body odor characteristic of "sweating."
E
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The articulation between the vertebrae is
A. an immovable joint. B. a slightly movable joint. C. a fully movable joint. D. The articulations between vertebrae are not classified by mobility.
Bill contracts a viral disease that destroys cells in the posterior gray horns in his spinal cord. As a result, which of the following would you expect?
A) loss of sensation in his torso B) inability to breathe C) problems with moving his arms D) uncontrollable sweating of his feet E) problems moving his legs
This receptor detects continuous deep pressure and distortion of the skin
A. Krause bulbs B. Lamellated corpuscles C. Arrector pili corpuscles D. Ruffini corpuscles E. Tactile corpuscles
A cell is surrounded by an extremely thin, flexible membrane. Why is the membrane selectively permeable?
A. It allows all substances to pass through, making it easier to absorb nutrients. B. It allows all organic substances to pass through, but excludes all inorganic substances that could be harmful. C. It does not allow any substances to pass through as they could damage the cell. D. It allows some substances to pass through and excludes others based on size, polarity, and other factors.