Final answer:
John Ray explored the organization of species and Carolus Linnaeus built upon his work by developing the binomial nomenclature system to classify and catalog the natural world.
Step-by-step explanation:
John Ray was the first naturalist to explore the natural hierarchy of organisms, and Carolus Linnaeus used Ray's work to develop the binomial nomenclature system to catalog the natural world. Carolus Linnaeus, also known as Carl von Linné, was a pioneer in the field of taxonomy. He expanded on Ray's work, revolutionizing the way we classify organisms. His Systema Naturae laid the foundation for what we now know as the modern system of naming organisms using two unique names, which is referred to as the binomial nomenclature. Linnaeus is considered the "father of taxonomy" and organized the natural world in a way where every species is given a unique binomial name, recognized worldwide.