These symbiotic associations can be divided into parasitism, mutualism and commensalism. Interactions of these organisms range from obligate mutualism to commensalism to outright antagonism. Species interact in various ways&colon; competition, predation, parasitism, mutualism, commensalism, etc. The six possible types of symbiosis are mutualism, commensalism, parasitism, neutralism, amensalism, and competition. Lichen associations may be examples of mutualism, commensalism or even parasitism, depending on the species. He introduced two important terms into evolutionary biology and ecology&colon; mutualism and commensalism. Associated with the term "symbiosis" are terms&colon; mutualism, commensalism, parasitism, and amensalism. In the web of relationships organisms can have relationships of symbiosis or commensalism. Phoresy is another type of commensalism, the commensal uses the host solely for transport. An example of commensalism occurs between the hawkfish and fire coral. The relationship between "W. smithii" and "S. purpurea" is an example of commensalism. These shared resources support commensalism between the two species. It feeds on detritus produced by the hornets (an example of commensalism). Metabiosis is the final form of commensalism. Pierre-Joseph van Beneden introduced the term "commensalism" in 1876.