What receptor is found in the membranes of all postganglionic parasympathetic neurons?
A) muscarinic
B) alpha
C) beta
D) nicotinic
Answer: D
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Lymphocytes
A) are actively phagocytic. B) destroy red blood cells. C) respond to antigens. D) are primarily found in red bone marrow. E) decrease in number during infection.
Which statement is true about cells?
A) Carbohydrates direct the production of all proteins made by the cell. B) Enzymes, required by the cell for chemical reactions, consist of nucleotides. C) A cell is composed of all of the 4 major organic compound groups. D) All carbohydrates in a cell come from the diet that the organism eats. E) A membrane of nucleic acids separates the cell from its environment and gives the cell its feature of semipermeability.
Taste buds are
A) proprioceptors. B) mechanoreceptors. C) pressure receptors. D) chemoreceptors. E) nociceptors.
Fever is caused by neurotransmitters released by pathogens.
Answer the following statement true (T) or false (F)