The thymus gland ____________________.
increases in size after puberty
is found in the mediastinum
produces thymosin
B and C only are correct
all choices are correct
B and C only are correct
is found in the mediastinum
produces thymosin
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During which of the following phases is K+ permeability greater than at rest?
A. During the after-hyperpolarization phase of an AP B. During the depolarizating phase of an AP C. During vesicular release of neurotransmitter from the presynaptic neuron D. During the repolarizing phase of an AP E. None of these, K+ permeability is greatest at rest
Which of the following statements regarding lipid membranes is true?
a. Phospholipids will spontaneously form liposomes in nonpolar solvents. b. A solution of pure fatty acids forms a lipid bilayer in a polar solvent. c. Membrane lipids move laterally within their own layer. d. Membrane lipids frequently move between one layer of the bilayer and the other. e. The preferred form of a lipid bilayer in water is a flat sheet with exposed edges.
The lens of the eye rounds up or bulges
A. for distant vision. B. when sleeping. C. for close vision. D. when a person is frightened.
A lack of testosterone causes baldness.
Answer the following statement true (T) or false (F)