In the center of a liver lobule there is a
A) hepatic duct.
B) portal area.
C) sinusoid.
D) central vein.
E) portal vein.
Answer: D
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Baby Timothy suffers from apnea and is hooked up to a monitor to warn his parents when he stops breathing. Timothy's dad snores very loudly. Timothy's condition differs from his father's in that infant apnea is
A. due to airway obstruction. B. treated by strapping a device onto the nose at night. C. a result of decreased surfactant. D. a central problem of respiratory control.
The RNA that has an anticodon and attaches to a specific amino acid is ________ RNA
Fill in the blanks with correct word
What is the layer labeled "4"?
Growth hormone (GH) hypersecretion causes gigantism when it begins in childhood, but it is more likely to cause ________ when it begins in adulthood
A) goiter B) Cushing syndrome C) Graves disease D) myxedema E) acromegaly