Which of these environmental factors varies least with changing depth?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

Asegment of dna that codes for rna and a protein is a

This is the interaction of two organisms where one is and the other is neither nor harmed.