Which statement about Alzheimer's disease is true?
A) Alzheimer's disease is suspected if a patient cannot retain his or her balance.
B) Alzheimer's disease is age-related, increasing in frequency as people age.
C) Alzheimer's disease often reverses or improves with time.
D) Alzheimer's disease frequently involves positive changes in personality.
Answer: B
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Which of the following terms includes the fewest species of organisms?
a. ecosystem b. community c. biosphere d. population e. class.
Which of the following is characteristic of an acute graft-versus-host disease episode?
A. The reaction occurs outside 100 days of the transplant. B. The reaction involves the skin, gastrointestinal (GI) tract, and liver. C. The reaction produces a fibrous condition of the mouth and eyes. D. The reaction involves the recipient's bone marrow.
A short chain of sugar attached to a protein molecule on the plasma membrane is called
A. a glycocalyx. B. a glycoprotein. C. a protosugar. D. a glycolipid. E. a protomembrane.
Which of the following fungal infections can be contracted through thorn pricks or wood splinters?
A. Sporothrix schenckii B. Cladophialophora C. Malassezia furfur D. Gyromitra esculenta E. Aspergillus