The term "symbiosis" refers to the relationship between two Symbiosis refers to the relationship
between two individuals of different types in which at least one gains from the other. Mutualism,
commensalism, and parasitism are the three main forms of symbiotic relationships. Each is categorized
based on how one organism is influenced by the other.
Mutualism: A Win-Win Relationship
Nobody can do it all alone! This is true not only for humans, but also for all other natural organisms. The
application of a give-and-take relationship among species is critical to the survival of life. Within the
school, for example, if a classmate offered you food, you could give drinks in exchange. You all benefited
from your decisions in this way.
Mutualism is a symbiotic arrangement in which all species prosper. Organisms in mutualistic
relationships often offer food and/or security to one another. In certain cases, two species are so
interdependent that one cannot exist without the other.