Members of the domain Eukarya include animals, plants, fungi, and protists. According to modern evolutionary classification, which of these four
groups is not a true kingdom?
A animals, because vertebrates and invertebrates share very few physical or behavioral traits
B. plants, because the common ancestor of all plants was a single-celled algae
C. fungi, because fungi share several traits with plants, yet genetically they are more similar to animals
D. protists, because the common ancestor of all protists was also an ancestor for the other eukaryotic kingdoms