What exactly klepsiela is, and what can cause to us?

If all organisms originated in their present forms during a single event, Darwin wondered, why was there a distinctive clustering of similar organisms in different regions of the world? Why were all types of organisms not randomly distributed?


Why would living and fossilized organisms that looked similar be found within the same region?


Why did the Galápagos species so closely resemble organisms on the adjacent South American coastline?


Why was there such a diversity of species in such a small area? Could these species have been
modified from an ancestral form that arrived on the Galápagos Islands shortly after the islands
were formed?


Could a process similar to artificial selection also operate in nature?

I dont understand why galapagos islands are related to this bacterium?can you please be more specific?
The only thing i know about klepsiela (if the spelling is right)is that it has the same origins with escherihia coli(e.coli)!please give me an answer,because i dont understand why the darwin's theory of evolution is involved to your reply!