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.

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.