Scientists conduct investigations to answer questions. Before making a valid conclusion, scientists must- A- collect relevant evidence
B- tell people about the data
C- publish results from the investigation
D- discuss the investigation with other scientists

PLSSS HEL

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.