Which one of the following parts of the eye is continuous with the cornea and forms the outer surface of the back of the eye?
A) retina
B) choroid
C) oval window
D) iris
E) sclera
E
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What cell component is an important factor in the
pathogenicity of many disease-causing bacteria? a. nucleoid b. pilus c. polysaccharide capsule d. flagella e. cell wall
Atrial Naturiuretic Peptide is produced in the
a. bloodstream. b. adrenal cortex. c. adrenal medulla. d. kidneys. e. heart.
According to the endosymbiont hypothesis, eukaryotic cells evolved as a consequence of ____.
A. the cyclic pathway of photosynthesis B. anaerobic respiration C. cell division D. mutual dependency E. chemosynthesis
Some cells have aquaporins—channels that facilitate the flow of water molecules through the plasma membrane. For these cells, what regulates the rate and direction of water diffusion across the membrane?
(a) aquaporin conformation (b) resting membrane potential (c) solute concentrations on either side of the membrane (d) availability of ATP