Please help 20 points

You are exposed to the same pathogen twice in your lifetime. Which of the following
is true?
Your body will fight the second exposure much quicker because it has stored
memory cells against that specific antigen.
The reaction times will be almost equal.
Your body will fight the second exposure much slower because it has already
used up all its antibodies against that antigen.
You cannot be exposed to the same pathogen twice in your life because you
already destroyed those pathogens with your Killer T cells.

When the sun hits the plant and the plant has water

Na+ loss through sweet plus the dilution has lowered na+ concentration outside of neurons, altering the na+ equilibrium potential. sodium exists more outside the cells than inside. when na+ is lost by sweat plus the dilution( because they drink a lot of water) changes the concentration outside the cell, forcing the water to enter the cell and attempt to balance the concentration inside/outside.the problem is that the abundance of water will cause the cells to swell. most cells can adapt, however, the brain cells can't that's why the runner has confusion and can't control the muscles.  if not treated and this occurs in less than 48 hours, it can be immediately fatal .

The answer is metamorphic.