In a sample of distilled water, a water molecule that has picked up an extra hydrogen ion is called a(n)
A. amphipathic macromolecule.?B. hydroxide ion.?C. hydronium ion.?D. proteinaceous water molecule.
C
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T Lymphocytes are produced and stored in all of the following except
A) the thymus. B) lymphatic nodules. C) lymph node organs. D) the spleen. E) the brain.
Why does a pennate muscle generate more tension than does a parallel muscle of the same size?
A) A pennate muscle generates more tension because pennate muscle fibers lie parallel to the bone. B) A pennate muscle generates more tension because pennate muscle fibers lie perpendicular to the bone and parallel muscle fibers lie parallel to the bone. C) A pennate muscle generates more tension because a pennate muscle contains more muscle fibers than a parallel muscle. D) A pennate muscle generates more tension because a pennate muscle has a flat body and a parallel muscle has a broad body. E) A pennate muscle generates more tension because a pennate muscle pulls in only one direction and parallel muscles pull in different directions.
The cell bodies of lower motor neurons are housed in the posterior horns of the spinal cord.
Answer the following statement true (T) or false (F)
The interpretation of olfactory information would fall under which general function of the nervous system?
A. Integration B. Sensory input C. Motor output