In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase. Live from hand to mouth
A) Filthy rich people
B) To be dependent on others
C) To have enough money to live on and nothing extra
D) Living in miserable conditions.
A) Filthy rich people
B) To be dependent on others
C) To have enough money to live on and nothing extra
_______________ is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration.