Essential nutrients
A. are needed to make food taste good.
B. are manufactured by the body.
C. are the only nutrients required by the body.
D. cannot be made in sufficient quantities by the body.
E. are important in the diet but not necessary for life.
Answer: D
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The glial cell that myelinates and insulates axons within the CNS is the
A. astrocyte. B. oligodendrocyte. C. neurolemmocyte. D. ependymal cell. E. microglial cell.
The medial concavity of the kidney is called the ________, which admits the renal nerves, blood vessels, lymphatic vessels, and ureter.
A. medulla B. cortex C. corpuscle D. hilum E. capsule
The portion of the aorta that gives rise to the coronary arteries is the
A. ascending aorta. B. aortic arch. C. thoracic aorta. D. abdominal aorta.
Bill accidentally fractures his first distal phalanx with a hammer. Which finger is broken?
A) the tip of his pinky B) the tip of his ring finger C) the tip of his index finger D) the tip of his middle finger E) the tip of his thumb