Artemisinin-based combination therapies are used to treat
A) uncomplicated and severe cases of malaria.
B) chronic Toxoplasma gondii infections.
C) severe fungal infections such as Cryptococcus meningitis and systemic Candidiasis infections.
D) mild to moderate C. difficile infections that don't have complications.
E) life-threatening multidrug resistant infections, especially those caused by Pseudomonas aeruginosa, Acinetobacter baumannii, or Klebsiella pneumoniae.
Answer: A
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Which organism may be mistaken for a lactose fermenter on MacConkey agar because of colonies exhibiting a purple hue on the media?
a. Acinetobacter spp. b. P. luteola c. S. maltophilia d. Bordetella holmesii
Eukaryotes have which of the following characteristics?
a. DNA wrapped around histones b. A single, circular chromosome c. Single-stranded linear chromosomes d. Ribosomal RNA within the chromatin
The largest and strongest males develop a
harem. b. A female bird will mate only with males that perform the best courtship displays. c. Members of a sorority usually marry fraternity brothers. d. Some males mate with any female they encounter. e. Female birds of paradise select the most colorful males as mates.
Respond to statements 47–52 in reference to the six organization
terms listed below. a. cell b. organ system c. growth d. organ e. development f. tissue M 47. This term describes the successive stages in the formation of specialized tissues—qualitative. M 48. This is a collection of tissues specialized for common function. M 49. The vertebrate circulatory system is a good example. D 50. Here cells are working together for a specialized function. D 51. This is a quantitative term describing an increase in cell numbers. E 52. This is the smallest unit of life.