Starting in the 1990s, knowledge really exploded, with many new dinosaur discoveries. Dinosaurs with feathers and fuzz were discovered. Skin impressions and scans gave much fuller pictures of what dinosaurs might actually have looked like. How did this change the illustrations of the period?

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.