Match the characteristics to each domain of microbial life. Please note: Each row highlights a single characteristic, such as the presence or absence of nuclei or presence or absence of peptidoglycan Bacteria Archaea Eukarya Found in non- extreme environments No nucleus Usually single-celled Usually single- celled Has peptidogylcan No nucleus Not No No peptidoglycan peptidoglycanprokaryotic in Prokaryotic inHas a nucleus Found in all environments Can be single- celled or Found in all Prokaryotic in structure

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.