The rate of diffusion is affected by which of the following? a) temperature b) size of molecules c) steepness of the concentration gradient d) a and b e) a, b and c

Where substance is produced during cellular respiration

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.

Match each medication with its description.