HOW FAR CAN AN S-WAVE TRAVEL IN 6 MINUTES 40 SECONDS?

time ) = 400 seconds

s ( speed ) = 7 km/s

d ( distance ) = unknown

Solution:

d = s × t

 = 7 km/s × 400 s

 = 2800 km

explanation:

mitosis is used to produce daughter cells that are genetically identical to the parent cells. the cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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