Final answer:
The scientific system of naming organisms ensures that two different organisms never end up with the same genus and species name.
Step-by-step explanation:
The scientific system of naming organisms, also known as binomial nomenclature, ensures that two different organisms never end up with the same genus and species name.
Each organism is given a unique binomial name consisting of a genus name and a species name, which allows scientists worldwide to easily identify and refer to a particular organism. For example, the scientific name for the North American blue jay is Cyanocitta cristata, and the scientific name for humans is Homo sapiens.