Where is the arctic tundra biome found? 20 POINTS HELP Use this website to answer the question: https://thewildclassroom. com/biomes/artictundra-2/

Question 2 options:

Within tropical and subtropical latitudes

Almost entirely in the Northern Hemisphere, from 60 to 70 degrees latitude North.

In tropical and subtropical latitudes

In high altitudes

The tundra is a treeless polar desert found in the high latitudes in the polar regions, primarily in Alaska, Canada, Russia, Greenland, Iceland, and Scandinavia, as well as sub-Antarctic islands. The region's long, dry winters feature months of total darkness and extremely frigid temperatures.

Explanation:

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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