from the invisible world and back

I will start talking about bacteria like a material. The Biochemist use bacteria to explore and experiment whit the life in earth like antibiotic efficacy, hormone function, osmosis etc. We use a Petri dish to take care of them the bacteria is put in the plate whit agar to make the bacteria population grow. We have a different type of agar to different kind of bacteria, chocolate agar to hemophilus species, blood bacteria most bacteria species will grow here, LB agar is a general medium used for a routine culture and the MacConkey agar to gran negative bacteria.
If we have the bacteria in any kind of agar the species need is putted in a specific temperature who need the bacteria to grow. I Choose this material because use an important material of the study of “bacterial warfare” in the last years the humanity are more vulnerable to the damage of bacteria for the bad use of antibiotics the biochemicals are investigating new methods to protect us, like vaccines, probioctics and manipulation of immune cells, if we didn't use the bacteria as a material we can't expand the knowledge of immunology, and the fabrication of another materials as pure copper or the reduction of dangerous substances for humans like lead, mercury and plastic, The bacteria also are programming to produce in this days products like insulin (for an e.coli bacteria) and are used in yogurt and cheese production using different species of bacteria for they fermentation.( Mesophilic and Thermophilic species ) This is because bacteria are important material for investigation.