The majority of synapses in the nervous system are:
A) voltage. B) mechanical. C) chemical. D) electrical.
Answer: C
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The basic event in the formation of a blood clot is the change of
A. fibrinogen to fibrin. B. thrombin to prothrombin. C. vitamin K to prothrombin. D. fibrin to fibrinogen.
Which of the following is a correct statement about stratified epithelia?
A) They afford little mechanical protection. B) They are characteristic of regions where secretion or absorption occurs. C) They line only internal compartments and passageways. D) They cover surfaces that are subjected to mechanical or chemical stress. E) They are vascular.
Define hypertrophy and hyperplasia, and describe their hormone regulation.
What will be an ideal response?
If the products of a chemical reaction contain less potential energy than the reactants,
A. energy has been released by the breaking of molecular bonds. B. a synthesis reaction is likely to have occurred. C. the reaction will be reversible without additional energy input. D. energy has been stored in the molecular bonds of the product. E. All of the choices are correct.