It should be Eubacteria o r Pteridophyta , if I'm not wrong. Animalia has the most.
</span>
<span>
The kingdom with the smallest number of known species is Archaebacteria, with about 259 identified species. In comparison, other kingdoms like Animalia have a significantly higher number of species. This ongoing research means that the true number of species could increase as new discoveries are made.
;