The severe diarrhea associated with cholera is brought about by
a. an associated virus.
b. an enterotoxin.
c. an exotoxin.
d. a buildup of electrolytes.
e. retention of water.
C
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Lisa and Jack Nash obtained compatible stem cells that cured their young daughter Molly's Fanconi anemia by
A) allowing Molly to undergo gene therapy on the affected cells. B) allowing Molly to undergo gene therapy on her germ cells. C) using umbilical cord stem cells from an unrelated donor. D) using umbilical cord stem cells from a younger sibling, who was conceived and selected for this purpose.
The type of exercise that creates new blood vessels and makes the heart pump more efficiently is ________
Fill in the blank(s) with correct word
What should be true of the cell wall of this bacterium?
A) Its innermost layer is composed of a phospholipid bilayer. B) After it has been subjected to Gram staining, the cell should remain purple. C) It has an outer membrane of lipopolysaccharide. D) It is mostly composed of a complex, cross-linked polysaccharide.
Which of the following allergies and treatments is mismatched?
A) allergic asthma: inhaled drugs that open up the bronchi B) insect bite/sting allergy: continued preemptive treatment with an injected antibody preparation that ties up the patient's IgE antibodies C) food allergy: managed on a contact basis using antihistamines like Benadryl D) anaphylaxis: epinephrine may be administered and emergency medical care must be sought E) atopic dermatitis: usually treated topically with ointments that may contain steroid anti-inflammatory drugs