Microscopic Life: Bacteria

Bacteria are the smallest and most numerous living organisms on Earth, found almost everywhere. They are single-celled and lack a nucleus, making them unique. Bacteria play a crucial role in food production, such as in yogurt, but can also cause infections and diseases. Despite their potential harm, bacteria are vital for decomposing organic matter, recycling nutrients, and aiding human digestion. They are essential for life on Earth and contribute to medicine production.

What role do bacteria play in the ecosystem?

How do bacteria assist in human digestion?