The cell membrane of a red blood cell will allow water, oxygen, carbon dioxide, and glucose to pass through. since other substances are blocked from coming in, this is membrane is called:
a) perforated
b) semi-permeable
c) non-conductive
d) permeable

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

i do believe the correct answer would be the third one. location c, because earth is tilted away from the sun at this time

hope this