Early classification systems consisted of two kingdoms; Plantae and Animalia. What scientific development allowed taxonomists to establish the Monera and Protista kingdoms?

Discovery of DNA
Invention of the electron microscope
Creation of electrophoresis
Development of Koch's postulates

1 answer

The invention of the electron microscope allowed taxonomists to establish the Monera and Protista kingdoms. This technological advancement allowed scientists to study the structure and characteristics of microorganisms in greater detail, leading to the recognition of these two new kingdoms.