Some microbes cause diseases like ‘flu and malaria, but most are completely harmless. They are essential to the cycling of nutrients in the ecosystems of the planet.
Microbial activity is exploited for the benefit of humankind in many ways, such as:
- production of medicines
- production of food
- production of enzymes
- the clean-up of sewage and other wastes
- exciting advances resulting from developments in molecular biology techniques.