The answer is March and September. This period is referred to as the equinox when the sun is
overhead the equator. The days and nights are equal all over the earth. June 21
and December 21, on the other hand, are the
date-months when the two solstices (when the earth
is at the extreme north and south latitude
latitudes) occur on earth.
If it is a red blood cell than the cell will shrivel because the water will dissolve out of the cell ( because more water flows out of the cell than back into the cell the cell Shrinks )
