1aEndosporeforming bacteria are part of what phylum cyanobac

1a.Endospore-forming bacteria are part of what phylum?
   cyanobacteria
   actinobacteria
   firmicutes
   proteobacteria

1b.What is not found in the cell membrane or walls of archaea?

   isoprenoid fatty acids
   murein
   pseudomurein
   ether linkages

Solution

1a. Firmicutes

Endospore is tough heat resistant structure formed by bacteria to resist dessication and adverse environmental conditions. Bacteria like Clostridium, Bacillus which belongs to Firmicute phylum produce endospores.

1b. Murein

Archaea differ from other bacteria in the chemical composition of the cell wall. Peptidoglycan also called murein is absent in archaea