Mutualism is a type of biological interaction that may range from loose to intimate, and from facultative to obligatory with both involved partners being called "mutuals."
Mwari is believed by many Zimbabweans to be an unknown supreme being that communicates with humans through cave-dwelling oracles known as the Voice of Mwari.
Rather, the apocrine sweat glands secrete in an merocrine fashion: membrane-bound vesicles bind to the plasma membrane of secretory cells and release products by exocytosis with no net loss of the plasma membrane.
Mutualism is the species-specific interaction of two organisms for mutual benefit.
At times, the term symbiosis is used specifically for this type +,+ association, using the term synonymously with mutualism.