Give an example of a bacteria that always lives inside your body. Search the Encyclopedia Britannica for Cyanidium caldarium . Describe the living conditions of this organism. These bacteria live freely in the environment or have a symbiotic or parasitic relationship with other organisms. Conjugation - two cells exchange a portion of their DNA across a bridge formed between the cells.
New material replaces old material in the cell.
While this increases the genetic variability in the organisms, it is not true sexual reproduction. Endospores - during adverse conditions, the DNA is encased in a protective envelope. This endospore can lie dormant for years or until favorable conditions return. These toxins are some of the strongest poisons known to man and cause violent reactions in host organisms. These toxins usually produce fever, weakness, and capillary damage.