What is the best discription of osmosis

a) movement of molecules from areas higher concentration to areas of lower concentration
b) movement of water from an area of lower solute concentration to am area of higher concentration
c) random movement of oxygen molecules across a concentration gradient until the number of molecules is nearly equal
d) not movement of molecules across the nuclear membrane until the number of molecules on each side is nearly equal

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.