Ascientist in new york conducted a series of experimental investigations to test the effect of radiation on plant growth. another scientist repeats the investigations, which produce similar results. this is important because

It’s important because it means that the results of the first experiment are repeatable. This gives more validity to the data and how the original experiment was conducted. This is necessary because the original experimenter could have made a mistake either intentionally or accidentally.

I’m guessing you’re more alert to yourself or your surroundings if you’re more concentrated