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