Which of the following is most likely to be observed by a physiologist? a.) atp is made up of adenine, ribose, and a phosphate chain. b.) bone is a rigid connective tissue. c.) hormones control the rates of reactions and regulate blood pressure. d.) the nervous system is composed of neural tissue.

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.