(Last edited: Saturday, 24 February 2024, 1:51 PM)
Answer:
Bacteria reproduce mainly by fission (dividing their own body). One bacterium splits into two bacteria, and it is called "binary fission." One bacterium can be two bacteria, and then two bacteria can become four bacteria. That's why bacteria are around us and in our bodies. Bacteria in our mouth and nose can spread when we cough and sneeze.