Which statement correctly compares action potentials and muscle contractions?
A. Both are "all or nothing" which requires a minimum threshold for action.
B. Muscle contractions will still occur with minimal innervation.
C. Both require acetylcholine to function.
D. Action potentials will still occur with minimal innervation but muscle contractions will not.
Answer: B
You might also like to view...
v
A) the sensorimotor stage of cognitive development. B) the postconventional stage of moral development. C) assimilation and accommodation. D) a theory of mind.
How many steps are there in hypothesis testing?
What will be an ideal response?
In regard to the cause of mental retardation (MR),
A) genetic disorders like Down syndrome tend to cause more mild forms of MR. B) the most severe forms of MR are due to prenatal alcohol exposure. C) prenatal exposure to alcohol is the leading known cause of MR. D) ALL of the above are true.
You are a doctor, and you are concerned that one of your patients may have a brain tumor. Which of these techniques could help you make an accurate diagnosis? Choose the option that is likely to provide the most accurate results without being invasive.
A. magnetic resonance imaging B. single-cell recording C. case study D. postitron emission tomography