The part of the digestive tract that plays the primary role in chemical digestion and nutrient absorption is the
A) cecum.
B) jejunum.
C) stomach.
D) duodenum.
E) colon.
Answer: B
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A disease of the thymus gland during infancy would most likely impact development of __________.
A. T cells B. B cells C. macrophages and dendritic cells D. complement and interferon
The primary curves of the vertebral column are the
A. thoracic and sacral curvatures. B. lumbar and sacral curvatures. C. cervical and thoracic curvatures. D. cervical and lumbar curvatures.
The "dark current" of photoreceptors refers to
A. the exit of Na+ and Ca2+ out of the cell when light is not hitting the cell. B. the entry of Na+ and Ca2+ into the cell when light is not hitting the cell. C. the entry of K+ into the cell when light is not hitting the cell. D. the exit of K+ out of the cell when light is not hitting the cell.
Making a Manometer
What will be an ideal response?