By Jared Diamond The author concentrates on why and how some of the ancient as well as some modern civilizations have collapsed or succeeded and also how or why some of the modern ones are possibly going to fail. It all seems that many, so called mysterious, society collapses have been caused at least partially …
Category: Biology
Nitrogen fixing bacteria in plants
How the process is carried out and evolution of nitrogenase. There is 78 % of molecular nitrogen (N2) in the atmosphere which can be bound in compounds only by procaryotes. Eukaryotes cannot fix (that is make useful compounds of) atmospheric nitrogen and convert it into an ion, therefore they need symbiosis with prokaryotes as atmospheric …