Is it true that the kingdom Monera is the largest kingdom in terms of the number of species?

Kingdom Monera is not the largest kingdom in terms of the number of species. This kingdom only includes prokaryotic organisms, such as bacteria and cyanobacteria. The largest kingdom in terms of the number of species is Kingdom Animalia, which includes a vast array of eukaryotic organisms ranging from invertebrates like sponges and jellyfish to vertebrates like fish, birds, and mammals. The exact number of species within each kingdom is constantly changing as new species are discovered and taxonomic classifications are revised, but as of current knowledge, Kingdom Animalia is the largest.