The placenta takes over progesterone production at which developmental week in humans?

a. 4
b. 8
c. 12
d. 16
e. 20


ANSWER: c

Biology & Microbiology

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A patient with an indwelling catheter tip began spiking a fever of 39°C. The site of the catheter was inflamed and red. The catheter tip was cultured, and the following organism was isolated: a nonlactose-fermenter on MacConkey agar; a glucose, xylose, and mannitol oxidizer with the ability to hydrolyze esculin. This organism is most likely which one of the following?

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Indicate whether the statement is true or false.

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The tuberculin response is an example of allergic contact dermatitis

Indicate whether the statement is true or false

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