A 48-hour old infant is brought to the clinic with signs of severe bacterial conjunctivitis (infection of the eye). The infant was born at home, with the birth assisted only by an unlicensed midwife, and no pharmaceutical interventions performed on the
mother or infant. Which infectious agents is the likely culprit?
A) HSV-2
B) Chlamydia trachomatis
C) Neisseria gonorrhoeae
D) bacterial vaginosis due to mixed anaerobic species
E) Neither Chlamydia trachomatis nor Neisseria gonorrhoeae should be ruled out without further testing.
Answer: E
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All atoms possess the ability to do work. The term that is defined as the ability to do work is:
A. matter B. energy C. molecules D. space
Four of the five answers listed below belong to the same category of structures. Select the exception
a. blastocyst b. amnion c. allantois d. yolk sac e. chorion
The immotile sperm develop motility in about 18 hours after arriving at the long, coiled tube called the
A. vas deferens B. seminiferous tubules C. epididymis D. testis
With the extinction of the dinosaurs 65 million
years ago, multiple niches that the dinosaurs once filled opened up and allowed mammals the opportunity to evolve and exploit those niches. In other words, mammals underwent a(an)
a. sympatric speciation. b. adaptive radiation. c. exaptation. d. behavioral isolation. e. phylogenetic isolation