There are two main types of pili:
* Common pili (or fimbriae): These are shorter and more numerous than sex pili. They help bacteria adhere to surfaces, which is important for colonization and infection.
* Sex pili: These are longer and fewer in number than common pili. They are involved in the transfer of genetic material between bacteria, a process called conjugation.
Let me know if you have any other questions! 😊
