Astructure in the shoulder of a human is found to carry oxygen-rich red blood
cells. what else is most likely true about this structure?
a. it contains a superior vena cava.
o
b. it is an artery with hypertension.
o
c. it also carries blood rich in carbon dioxide.
o
d. it carries blood toward the fingers,

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

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.