The most sensitive portion of the retina of the eye is known as the
A. cones.
B. fovea centralis.
C. optic nerve.
D. rhodopsin.
B. fovea centralis.
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The pancreas produces a variety of digestive secretions, including (select all correct choices):
A. lipase for fat digestion. B. trypsin for further protein digestion. C. bicarbonate ions to neutralize stomach acid. D. methane from fermentation. E. gastrin to stimulate HCl production.
Most sodium chloride is excreted from marine bony fishes through:
a. the kidneys. b. the gills. c. salt glands. d. the feces. e. diffusion.
Cytoplasm is cleaved in two during the ________ phase of the cell's life cycle.
Fill in the blank(s) with the appropriate word(s).
If a physician wanted to collect spinal fluid for analysis s/he would want to place a needle between the:a
dura mater and skull. b. dura mater and pia mater. c. arachnoid and pia mater. d. pia mater and brain. e. dura mater and arachnoid.