Which of the following statements is false? (choose one)

a. voltage-gated sodium (na+) channels open in the dendrites and cell body during a local, graded potential.
b. during repolarization, potassium ions are leaving the cell (k+ is diffusing out of the cell), and the inside of the cell becomes more negative
c. if someone damaged an efferent motor neuron, they could feel pain, but not respond to move away from the pain
d. myelin serves as electrical insulation and increases the speed at which an action potential travels along the axon
e. movement of ions can be excitatory (if sodium ligand-gated channels bind the neurotransmitter), or inhibitory (if potassium ligand-gated channels bind the neurotransmitter)

answer; the correct answer is (beta)

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.

there is no

explanation:

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