According to embryology, which three species have the closest common ancestor? insects, birds, and fish
amphibians, mammals, and birds
reptiles, amphibians, and bacteria
insects, bacteria, and reptiles

Which organelles are involved in energy conversion

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.

Drag each label to the correct location on the chart. match the function to the type of tissue