What were some positives of the migration? introduction of new crops, they absorbed other tribes, learned to build permanent homes, introduced iron working, led to a rise of large states bigger tribes, and introduced subsistence agriculture and centralized aministration.
Endospores are dormant alternate life forms produced by the genus Bacillus, the genus Clostridium, and a number other genera of bacteria, including Desulfotomaculum, Sporosarcina, Sporolactobacillus, Oscillospira, and Thermoactinomyces.
When the environment becomes less suitable for growth the bacteria begin producing spores that are able to tolerate much greater extremes than the active bacteria. The four most notable species of Clostridium are Clostridium tetani, Clostridium difficile, Clostridium perfringens, and Clostridium botulinum.