What advantages might a bacterial species that forms multicellular arrangements (e.g., clusters or chains) have that are not afforded unicellular bacteria?

How did they know that Epulopiscium fishelsoni and Thiomargarita namibiensis were Prokaryote , and NOT eukaryotes???

How does the membrane structure of hyperthermophilicArchaea differ from that of Escherichia coli and why is thisstructure helpful for growth at high temperature?

Classify the following attributes as belonging to either purple photosynthetic bacteria or heliobacteria. Purple Photosynthetic Bacteria Heliobacteria Bacteriochlorophyll g Heterotrophic Cannot form endospores Reduced sulfur is electron donor for NAD* reduction Gram-positive Gram-negative Autotrophic Some form endospores Organic carbon electron donor for NAD* reduction Bacteriochlorophyll a or b Possess intracellular cytoplasmic Possess only plasma membrane membranes

 What were the earliest forms of life on Earth?  What was the energy source for the earliest form of life on earth?  What are the earliest records of life on Earth?  What is able to grow and thrive under conditions that would kill most other organisms (high/low pH, etc)?  What are psychrophiles?  Describe radioresistant prokaryotes and their habitat preferences.  Who developed postulates to identify disease-causing organisms?  What percent of bacteria and archaea cannot be cultured?  Describe the viable-but-not-culturable state of prokaryotes.  Describe planktonic prokaryotes.  Why do biofilms form?  What holds biofilms together? Structure of Prokaryotes  Describe the nucleoid.  Describe conjugation.  What happens during binary fission?  What are cell walls of prokaryotes primarily composed of?  What structure of Archaea is different from other domains of life?  What is the Bacteria division into two groups based on? Prokaryotic Metabolism  Which macronutrient is…