The incidence of HIV/AIDS among transfusion recipients has
A) increased since the discovery of HIV.
B) decreased since the discovery of HIV.
C) remained the same since the discovery of HIV.
D) never been more than a few individuals per year.
Answer: B
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The chemotherapeutic agent must reach levels in the body that are ________ the pathogen's MIC value if it is going to be effective.
A. equal to B. less than C. greater than D. None of the choices are correct.
What are the three components of a nephron?
a. renal pelvis, major calyx, minor calyx b. afferent arteriole, glomerulus, efferent arteriole c. renal corpuscle, renal tubule, and capillaries d. ureter, renal fascia, capsule
Gymnosome pteropods are primarily
a. herbivores. b. carnivores. c. detritovores. d. omnivores. e. filter feeders.
Answer the following statements true (T) or false (F)
1.Jellyfish have incomplete digestive tracts. 2.Autotrophs make their own food using energy captured from the sun. 3.An ectotherm with a complete digestive tract might eat infrequently, eliminating from a different place from the one where it ingested. 4.Larger animals generally need more energy and building blocks than do smaller animals. 5.If a doctor designs an operation intended to help victims of stomach cancer, who have lost most of their stomachs, by fusing the remaining stomach tissue with the esophagus, the main problem is likely to be damage to the esophageal tissue from stomach acid.