Their cel walls lack peptidoglycan. Many live in extreme environments. What kingdom is it?

Question

Their cel walls lack peptidoglycan. Many live in extreme environments. What kingdom is it?

Answer 1

Not sure what this has to do with geography, but the answer is bacteria.

Answer 2

Archaebacteria.

"Archaebacteria are strong bacteria that are capable of living in extreme environments, such as thermal vents, gysers, salt water and swamps.

Since Archeabacteria are prokaryotes they lack organelles, they do not have the peptidoglycan cell wall like Eubacteria but they still have a cell wall. ..."

http://ph.answers.yahoo.com/question/ind...

"Archaebacteria lack peptidoglycan in their cell walls and their genes are more similar to those found in eukaryotes than are those of eubacteria. ..."

http://www.daviddarling.info/encyclopedi...