The olfactory receptors are highly modified
A) epithelial cells.
B) interneurons.
C) sensory neurons.
D) motor neurons.
E) neuroglial cells.
C
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Which of the following is (are) true of the thymic lobules?
A) They are the site of the production of lymphocytes, but not of the T cells. B) They contain lymphoid stem cells and thymic corpuscles. C) They lack an internal structure of a cortex and a medulla. D) They contain special capillaries that selectively acquire circulating antigens to pass through the tissues. E) All of the answers are correct.
In addition to the normal secretions by the stomach, infants produce ________.
A. intrinsic factor B. pepsin C. gastrin D. rennin
The cell membrane performs all of the following functions except which one?
A. Gives the cell structure B. Defines the cell's intracellular and extracellular environment C. Regulates what enters and exits the cell D. Houses DNA
Which term describes a decreased ability to accommodate between near and far vision with aging, resulting in difficulty seeing objects up close?
A. Sensorineural hearing loss B. Tinnitus C. Presbyopia D. Otoliths