Which two vessels carry blood between the heart and the head? vena cava and aorta
femoral vein and carotid artery
aorta and femoral vein
jugular vein and carotid artery

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.