Why do classification systems change over time?
1. scientists find new evidence in their studies
2. scientists use old methods of classifications
3. scientists repeat experiments and find no changes
4. scientists find similar evidence to previous work

Classification systems change over time because Scientists find new evidence in their studies. The development of science led to discoveries that made the classification can change or increase

The classification system always develops according to the development of science. classification systems can vary according to experts who present them and can experience changes along with the latest findings

Initially living things were classified into two, namely Plantae (plants) and Animalia (animals)

At that time the fungus was inserted into the plant, but as it developed, it was known that the fungus was not chlorophyll and its cell wall from chitin so that it was different from plant cells consisting of cellulose so that the fungus was separated into its kingdom, becoming Fungi

Single-celled living creatures that did not have a core membrane were then classified as kingdom Monera

Then the protozoa and algae are differentiated and removed from the kingdom Monera into the kingdom Protista

Eventually, Kingdom Monera was used and instead the kingdom of Archaebacteria and Eubacteria appeared. So it appeared into 6 kingdoms, namely:

So the classification systems change over time because the Scientists find new evidence in their studies

Compare and contrast the domains of Bacteria and Archaea

one reason scientists have developed a system to classify organisms

taxonomy.

Keywords: taxonomy, The classification of living things

not sure if this is what you'r looking for eubacteria and archaebacteria

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.