Answer: (A) Distilled Water
Enzymes are used to break down glucose.
<span>Cell division has two checkpoints namely, G1 checkpoint and spindle assembly checkpoint. The checkpoint which determines if division has properly occurred is the G1 checkpoint. At this point, is a damage in the DNA is detected or the has not reach the optimum size, the cell is stopped in G1 and is not allowed to proceed to further process.</span>
The dependant variable would be the salmon, because they depend on the water and pollution levels to give a result.
