Final answer:
The experiment's results being replicated by two scientists demonstrate the concept of replication in science, ensuring reliability and validity of conclusions.
Explanation:
Replication is the concept best illustrated by the scenario where two scientists obtain similar results in an experiment testing plant growth with a specific fertilizer. Repetition of an experiment multiple times helps confirm the reliability of the results and ensures the validity of the conclusions drawn. In scientific research, reproducibility is essential to validate findings and increase confidence in the accuracy and precision of the data.
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