Final answer:
The concept of genus-species relation is not a complete description of the world due to convergence and evolutionary changes. Recent advancements in genetic analysis have led to changes in taxonomic classifications.
Step-by-step explanation:
There are several arguments that show that the genus-species relation does not completely describe the world. One argument is based on the concept of convergence, which occurs when different species evolve similar traits independently. This can make it difficult to accurately determine the phylogenetic relationships of organisms based solely on their genus and species. For example, polar bears and seals have similar aquatic adaptations, but they are not closely related. Another argument is that organisms evolve and change over time, which can result in differences in their genetic makeup. Recent advancements in genetic analysis have led to changes in taxonomic classifications, reflecting the need for updates as new discoveries are made.