In which stage of the cell cycle does a cell contain twice its normal number of chromosomes?
A)prophase
B)metaphase
C)S phase of interphase
D)anaphase
D)anaphase
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The muscle that squeezes the eye shut is the __________ oculi.
Fill in the blank(s) with the appropriate word(s).
Water channels in cells in the collecting duct are called ________.
Fill in the blank(s) with the appropriate word(s).
The failure of interhemispheric transfer of information in a split-brain patient is best demonstrated by:
A. having him use both hands for a task B. covering one eye during a task requiring eye-hand coordination C. asking him to identify an object placed to his left D. asking him to identify an object placed in his left hand E. asking him to identify an object placed in his right hand
The flexor (withdrawal) reflex employs a ________, which maintains a sustained contraction
A) diverging circuit B) reverberating circuit C) closed circuit D) parallel after-discharge circuit E) converging circuit