Final answer:
Bacteria ensure their survival in our bodies through the formation of biofilms, production of toxins, and the ability to form spores.
Step-by-step explanation:
Bacteria have several ways of ensuring their survival in our bodies. One way is through the formation of biofilms, which are communities of bacteria that stick together and form a protective layer. Biofilms help bacteria avoid detection and attacks from the immune system. Another way bacteria survive is by producing toxins that can help them compete with other organisms in the body. These toxins can kill or inhibit the growth of other bacteria, giving the producing bacteria a competitive advantage. Lastly, some bacteria have the ability to form dormant, resistant structures called spores. Spores are highly resistant to harsh conditions and can survive for long periods of time until they find a suitable environment to grow and multiply.
Learn more about Bacteria survival mechanisms in the human body