Compare a pseudocoelom to a coelom. Multiple Choice A pseudocoelom is completely enclosed by mesoderm whereas a coelom has an outer covering of mesoderm and an inner one of endoderm. The coelom is enclosed by ectoderm and the pseudocoelom is enclosed by endoderm. A coelom is completely enclosed by mesoderm whereas a pseudocoelom has an outer covering of mesoderm and an inner one of endoderm. The pseudocoelom is enclosed by ectoderm and the coelom is enclosed by endoderm. The coelom is enclosed by ectoderm and the pseudocoelom is enclosed by mesoderm.

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.