AP BIOLOGY

Detailed explanation-1: -Commensalism happens when one species lives with, on, or in another species, known as the host. The host species neither benefits nor is harmed from the relationship.

Detailed explanation-2: -Commensalism is a relationship between species in which one benefits and the other is unaffected. Humans are host to a variety of commensal bacteria in their bodies that do not harm them but rely on them for survival (e.g. bacteria that consume dead skin).

Detailed explanation-3: -The simplest example of commensalism is a bird making a nest in a tree. The tree provides shelter and protection to the bird without getting significantly harmed or affected by the bird. Another typical example is the cattle egrets (birds) that feed upon the insects stirred up by the feeding cattle.

Detailed explanation-4: -The simplest commensalism definition is that it’s a type of symbiosis where one organism benefits and the other neither benefits nor is harmed. The three main types of commensalism are inquilinism, metabiosis, and phoresy.