Are there any good spelling websites for 9th grade? I want to expand my horizon of words I know but, I also want to make sure I'm spelling all my words correctly.

Which part of the original work should the adaptation retain

What elements of mythology and folklore are important to humans

In a series of experiments, hershey and chase radioactively labeled dna and protein in viruses and then used labeled viruses to infect bacteria. hershey and chase's experiments definitively showed that a. dna and not protein is the genetic material. b. dna and protein work together as a cell's genetic material. c. protein and not dna is the genetic material. d. neither dna nor protein act as a cell's genetic material