Answer:
Cell theory- all living things are made of one or more cells,that cells are the basic unit of life,and that cells come only from other cells
Explanation:
It would be the first one because a cell theory is that all living things are made of one or more cells
A control is used to establish a baseline in an experiment.
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He/she would be able to conclude that due to the lack of uracil and presence of double strands that the molecule is DNA and not RNA.
