All that ever actually gets to the brain from the senses are
(a) sights, sounds, etc., depending on the sense
(b) mechanical vibrations transmitted by neurons
(c) information carried by the strength of the various impulses, that is, loud
sounds cause bigger neuronal impulses
(d) chains of electrochemical impulses
D
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Since transferring from her all-girls school, Angela's grades in advanced math have dropped. Assuming the material is similar and her teacher is fair, what might explain this change?
A. stereotype threat B. kernel of truth theory C. outgroup homogeneity D. token anxiety
The human brain contains approximately ________ transistor-like neurons
a. 100,000 b. 100 billion c. 10 million d. 5 million e. 1 billion
Describe current trends in the values of college students in regard to societal welfare, life philosophy, and participation in community-service programs.
What will be an ideal response?
Christina was bitten by a black widow spider while retrieving some wood for her fireplace. Her abdominal muscles began to contract painfully, which was to be expected because black widow spider venom a. inhibits release of acetylcholine (ACh) at the neuromuscular junction
b. competes with acetylcholine (ACh) at nicotinic receptor sites. c. promotes greater than normal release of acetylcholine (ACh) at the neuromuscular junction. d. interferes with GABA inhibition of the motor system by blocking receptors.