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.
Listeria monocytogenes is a Gram-positive rod-shaped bacterium related to Bacillus and Clostridium, but it does not form endospores. Listeria monocytogenes is the agent of listeriosis, a serious infection caused by eating food contaminated with the bacteria.he two medically-important genera are Bacillus, the members of which are aerobic sporeformers in the soils, and Clostridium, whose species are anaerobic sporeformers of soils, sediments and the intestinal tracts of animals. Figure 10. Endospore-forming bacilli (phase contrast illumination).