Increased permeability of the postsynaptic cell to Cl- lessens the likelihood that the postsynaptic cell will undergo an action potential
Indicate whether the statement is true or false
T
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The stage in meiosis where chromosomal exchange takes place is telophase
Indicate whether the statement is true or false
During development, T lymphocytes are tested to make sure they react to antigen. In other words, they are tested to see if they are ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is false regarding sleep?
A. REM sleep is important for memory processing and consolidation. B. During REM sleep, the brain uses as much oxygen as when the individual is awake. C. The longest bouts of REM sleep occur early in the night, with shorter REM periods toward the morning. D. Different stages of non-REM sleep are characterized by different brain waves.
The position of the head with respect to gravity is determined by the
A. shift in fluid in the semicircular canals. B. movements of otoliths in response to gravity. C. movements of perilymph in the vestibular chamber. D. impulses transmitted from the macula of the semicircular canals. E. stimulation of the cochlear portion of the nerve.