In patient dialysis, what is the “membrane” and what is the “beaker”?

my teacher gave us a hint but i still don’t get it. plz someone help.

Hint: patient blood is running through a tube made of semi-permeable material. The tube is circulated through a machine containing a dialysate solution of specific components very similar to those in blood acting as a filter

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation: