I get the feeling that agent smith has the mistaken idea that the orchid Mantis evolved in isolation from other animals. Carnivorous plants and mantises share a common ancestor to be sure but that ancestor was, in all probability, close to 2 billion years ago. Bacteria do not really follow the rules like most animals and plants, bacteria share DNA through gene transfer instead of sexual reproduction so a common ancestor in regards to bacteria is sort of a misrepresentation of the process. Gene transfer in bacteria can occur in wildly different microbes and the resulting pattern is far more like banyan tree than a standard evolutionary type tree with one trunk. (a banyan tree has multiple trunks) Animals do not become plants nor do plants become animals, the split between the three kingdoms of life, plants, fungi, and animals occurred way before any recognizable macro creatures evolved. Looking deeper into this i find the classification i am used to using is too simple to accurately describe the classification of life.
Maybe this will clarify the situation.
https://en.wikipedia.org/wiki/Kingdom_(biology)
Doolittle_Web_of_Life.jpg.crdownload