The cones are most densely packed in the
A. fovea centralis.
B. vitreous humor.
C. blind spot.
D. choroids.
Answer: A
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Indicate whether the statement is true or false
The electrocardiogram (ECG) shows a record of ________
A) electrical activity of the heart muscle B) each heart beat (or contraction) C) the electrical events in the intrinsic conduction system
A branch of the inferior alveolar nerve supplies somatic motor innervation to the _________ muscle.
A. geniohyoid B. stylohyoid C. anterior belly of digastric D. posterior belly of digastric E. platysma
Several research groups are working on vaccines that will be effective against the AIDS virus. When a successful vaccine is produced, it is likely to be injected to produce
A. active natural immunity. B. active artificial immunity. C. passive natural immunity. D. passive artificial immunity. E. active passive immunity.