Why are viruses not classified as prokaryotes or eukaryotes?

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome

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.