Over the course of several months, Morris has experienced difficulty speaking
coherently, clumsiness, muscle fasciculations, and increasing weakness in his limbs.
These symptoms are most consistent with those of
A) Parkinson disease. B) Hodgkin's disease.
C) amyotrophic lateral sclerosis. D) muscular dystrophy.
C
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Describe the process of B-cell activation
What will be an ideal response?
Which of the following is not true of lymphatic capillaries?
A. They are lined with endothelial cells joined with tight junctions. B. They are closed at one end. C. They are more permeable than blood capillaries. D. Gaps between endothelial cells permit lymphocytes to pass. E. There is no continuous basement membrane in the wall.
The range of human hearing is about
A) 2,000-200,000 vibrations per second. B) 2-2,000 vibrations per second. C) 2,000-3,000 vibrations per second. D) 20-20,000 vibrations per second.
If osmosis is occurring, then you know there is a net movement of water to an area of
a. lower osmotic pressure b. higher hydrostatic pressure c. higher solute concentration d. higher water concentration e. lower osmotic pressure and higher water concentration