Final answer:
Bacteria, especially bacteria, outnumber human cells in the human body. They have symbiotic relationships with humans and play important roles in our health.
Step-by-step explanation:
According to a report by the National Institutes of Health, bacteria, especially bacteria, outnumber human cells 10:1. However, more recent studies suggest that the ratio could be closer to 1:1. Bacteria can be found in various parts of the human body, such as the mouth, nasal cavity, throat, gastrointestinal tract, and skin.
This suggests that bacteria play an important role within humans. They are not just pathogens that cause diseases but also have symbiotic relationships with us. Some bacteria are beneficial to our health and are essential for our well-being.