Helicobacter pylori has been implicated as the causal agent of:
a. diarrhea.
b. constipation.
c. peptic ulcers.
d. cardiovascular disease.
e. kwashiorkor.
c
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Answer the following statements true (T) or false (F)
1. Myosin is a motor protein that walks along intermediate filaments. 2. The flagellum is composed of a 9 + 2 arrangement of microtubules called the axoneme. 3. Materials move in and out of the nucleus via endocytosis and exocytosis. 4. The Endosymbiosis theory best describes the origins of peroxisomes in eukaryotes.
ANSWER: e
a. canola-oil seeds b. castor-oil seeds c. gypsum-weed seeds d. sesame seeds e. sunflower seeds
Physician Edward Jenner promoted the use of cowpox, a harmless pathogen related to the dangerous smallpox, as a vaccination to provide patients immunity from future smallpox epidemics. This is an example of
A. active immunity. B. passive immunity. C. an inflammatory response that decreased the IgE production and increased T cells. D. developing high levels of interferon although Jenner did not realize these diseases were viral. E. developing high levels of complement.
Which one of the following is NOT a characteristic of giardiasis?
a. It is caused by a flagellated protist. b. diarrhea is a notable sign c. transmission occurs by tick bites d. it is the most commonly detected intestinal protistan disease in the US