In the 1990s, many scientists agreed that the five-kingdom classification scheme should be expanded to six kingdoms. Which discovery
supported this decision?
A
Fungi differed significantly from both plants and animals
B. Two groups of monerans-Eubacteria and Archaebacteria--differed significantly from one another
C
Protists are not a true kingdom, and should be classified in at least two different kingdoms
D. Fungi are not a true kingdom, and should be classified in at least two different kingdoms