Biologists have been able to produce mice that lack functioning genes for aquaporins. how would the urine of these mice compare to that of mice with normal aquaporins? a) lower volume and lower osmolarity b) higher volume and higher osmolarity c) higher volume and lower osmolarity d) lower volume and higher osmolarity

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.