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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A founder effect occurs when
A) geographic barriers separate populations. B) some individuals leave a larger group. C) individuals in a population have few children. D) mutations introduce new alleles into a population.
In a random screening of athletes at a recent event, a runner was disqualified for testing positive for an injected form of erythropoietin. Which of the following is a consequence of extra erythropoietin in the circulatory system?
A) More red blood cells B) A low white blood cell count C) "Thin" blood that does not clot efficiently D) Low blood pressure
Atherosclerosis
A) is caused by a diet high in salt. B) causes a loss of plaque from the walls of the arteries. C) reduces blood flow in arteries. D) is a condition of the veins. E) is another name for high blood pressure.
Briefly explain why animals that live in very dry climates have the longest nephron loops
What will be an ideal response?