Answer:
The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false. Step 2. Form a hypothesis.
Explanation:
A is true, the others are not. I would assume they count the mRNA and tRNA in protein synthesis as 'double stranded'
Answer:
x1000 the concentration of hydronium ions in a solution with pH 1 is 1000 times greater than one pH 4