Symbiotic Relationships

A relationship between organisms or species that is helpful to both

• commensalism

• parasitism

• mutualism

• predation

An interaction between organisms or species that is helpful to one but neither helpful nor harmful to the other.

• symbiosis

• commensalism

• parasitism

• mutualism

A long-term relationship between two different kinds of organisms where one or both receive benefit.

• commensalism

• mutualism

• parasitism

• symbiosis

When more than one individual or population in an ecosystem relies on the same limited resources

• commensalism

• competition

• predation

• parasitism

A relationship between organisms of different species where one organism benefits at the expense of the other

• parasitism

• mutualism

• commensalism

• competition

The interaction between two animals in which one animal eats the other

• commensalism

• mutualism

• predation

• competition