Action potentials .(A) are only found at the axon hillock and along the axon.(B) Two of the answers are correct.(C) are very small changes in the membrane potential of the cell body or dendrites.(D) can travel long distances but get weaker the father they go.(E) can be either depolarizing or hyperpolarizing during their initial phase.

A

Explanation:

Action potentials are generated at axon hillock because it contains higher density of Na+ channels.From here it is conducted down the axon with equal intensity. It initially depolarizes then polarizes, the order is strict. However, its not affected by the distance they travel.

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

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