Final answer:
The accurate statement regarding the ivory trade is that it was a global network impacting the elephant population, as the high demand for ivory products led to the severe decline of elephant herds.
Step-by-step explanation:
The true statement about the ivory trade is that it was a global network that once moved ivory around the globe and it severely impacted the world's elephant population. The nineteenth century saw a high demand for ivory for various products, requiring large quantities of elephant tusks. This demand has led to serious declines in elephant populations and changes in elephant evolution, such as the development of smaller tusks.
Despite a decrease in ivory popularity with changing technologies and entertainment forms, contemporary demands in certain markets continue to fuel illegal trade. The history of this trade shows how high demands for luxury items like ivory can lead to severe consequences for wildlife and biodiversity.