Discovered significant differences between organisms originally categorized under the monera kingdom; thus, these organisms were placed into two separate domains.

edward jenner
carl woese
carolus linnaeus

The correct answer is- Carl Woese.

Carl Woese proposed a three domain system of classification according to which all life forms can be divided into three distinct domains that is Archea, Bacteria, and Eukarya.

The organisms that were categorised earlier in Monera were segregated into two different domains that is Archea and bacteria.

Archea constitute the most primitive forms of bacteria that live in extremely harsh environmental conditions such as hotsprings, where organisms belonging to bacteria domain can not live.

thermophiles, notice the prefix thermo.