👉 Commensal is a term used in biology to describe organisms that are not considered predators but instead prey on other organisms. These organisms, known as commensal, can be beneficial for their host by providing food or shelter while also contributing to the ecosystem. For example, ants and spiders may serve as commensals for plants by eating leaves and flowers, while bacteria and fungi may be commensals in the soil or in the air due to their role in decomposing organic matter.