Which structure is used to help regulate buoyancy of fish?
a. kidney
b. stomach
c. intestine
d. swim bladder
e. ureter
d
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A cerebrospinal fluid (CSF) culture was performed on a newborn in distress. After overnight incubation, small gram-positive bacilli with a soft zone of <-hemolysis grew on sheep blood agar. Based on this information, what results would be expected on the following tests: hippurate; Christie, Atkins, Munch-Petersen (CAMP); and motility?
a. Negative hippurate, positive CAMP, and negative motility b. Positive hippurate, negative CAMP, and positive motility c. Positive hippurate, positive CAMP, and positive motility d. Negative hippurate, negative CAMP, and negative motility
Four of the five answers listed below are parts of the central nervous system. Select the exception
a. spinal cord b. medulla c. ganglia d. cerebellum e. cerebrum
The relationship between the concentration of a gas in solution and the partial pressure of that gas can be described by
A) Fick's law. B) Poiseuille's law. C) Dalton's law. D) Boyle's law. E) Henry's law.
Following damage to his heart, Jim is having a pacemaker implanted. Which one of the following components of the heart does this device replace the activity of?
A) atrioventricular node B) sinoatrial valve C) atrioventricular bundle D) Purkinje fibers E) sinoatrial node