A phenomenon, in the scientific context, is an observable event that can range from a seasonal hazard to a technological issue. For a scientist, a phenomenon is an observable event.
I took the same test the answer is A. 1 day
DNA polymerase is an enzyme that adds the RNA nucleoides to help build the RNA molecule
On a time graph the line will be flat. on a distance the line will increase at a predictible rate
Mitochondria produce ATP, energy that is vital in aerobic cells. Therefore, I believe this is why they can be considered as power plants.