You want to determine which part of the brain is most active when a person is forming a sentence before they say the words out loud. Which imaging technique would be most useful?
A. Radiography
B. Angiography
C. Positron emission tomography (PET scan)
D. Computed tomography (CT scan)
E. Sonography
C. Positron emission tomography (PET scan)
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What common food reacts with pewter and was once thought to be poisonous?
A. Tomatoes B. Apples C. Figs D. Bananas
A blockage in the ________ would greatly interfere with blood flow to the pericardium and anterior wall of the chest.
A) axillary artery B) vertebral artery C) thyrocervical trunk D) internal thoracic artery E) external carotid artery
Plasma proteins are primarily responsible for the blood's viscosity, while the concentration of red blood cells greatly influences blood osmotic pressure
Indicate whether the statement is true or false
Sex cells are called ________.
A. zygotes B. spermatocytes C. oogonia D. chromosomes E. gametes