Some animals can produce a potassium ion concentration inside their cells that is twenty times greater than that of their environment. this ion concentration gradient is maintained by the plasma membrane. identify the process in the cell membrane that produces this difference in concentration.

In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him