Rods
a. are more sensitive to light than cones
b. have low acuity compared to cones
c. provide vision in shades of gray
d. exhibit all of the above
e. exhibit only characteristics a and c
D
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Which statement regarding the IVC is not true?
A. It drains all the deoxygenated blood from below the level of the heart. B. It is formed at L5. C. It is formed by the union of the right and left common iliac veins. D. It empties into the right atrium.
Excess interstitial fluid enters lymphatic capillaries
A. by phagocytosis. B. through one-way flaps. C. by diffusion. D. through gated channels in response to changes in ion balance. E. by pinocytosis.
The hormone ADH promotes water reabsorption through the wall(s) of the
A) ascending limb of the nephron loop. B) distal convoluted tubule and collecting duct. C) proximal convoluted tubule and collecting duct. D) descending limb of the nephron loop.
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "E"?
A. Directs cellular activities, contains DNA B. Site of protein synthesis C. Outer boundary of cell, controls entry and exit of substances D. Major site of ATP synthesis when oxygen is available E. Contains digestive enzymes