Which disease is caused by a protozoan?
A. Candidiasis
B. Shingles
C. Malaria
D. Strep
Answer: C
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Which of the following is(are) true of leukocytes?
A) They enter peripheral tissues through the openings in fenestrated capillaries. B) They are attracted to the specific chemical stimuli emitted by invading pathogens, damaged tissues, and other white blood cells. C) They have very long life spans. D) They are mostly located in the bloodstream, which they use as a rapid means of transport to peripheral tissues. E) All of the answers are correct.
Erythropoietin appears in the plasma when peripheral tissues, especially the kidneys, are exposed to __________.
a. extremes of temperature b. low oxygen concentrations c. high urine volumes d. excessive amounts of radiation
Where does most nutrient reabsorption occur?
A) 2 B) 3 C) 4 D) 5 E) 6
When ________, blood is forced into the ventricles.
A. the atria contract and the ventricles relax B. the atria relax and the ventricles contract C. both the atria and the ventricles relax D. both the atria and the ventricles contract