Answer
The evaluation of the taxa in the Great Smoky Mountains National Park will not help in getting an accurate idea of the taxa of the world because a large number of plants and animals might not be able to grow in that region.
Work Step by Step
The estimation of all the taxa present in the Great Smoky Mountains National Park will allow the biologists to have an estimate of the diversity of animals and plants in the world. It would also provide an estimate of the actual diversity of species that is underestimated in different parts of the world.
However, this cannot be used for the accurate estimation of the number of plants and animals in the world. This is so because the environment of the Great Smoky Mountains National Park might not be accurate for some of the plants and animals, such as the plants growing in the tropical climate.