A small bowl of yogurt with blueberries and granola on top. Probiotics are not necessary for human health, according to Mayo Clinic nutritionist Katherine Zeratsky. Nevertheless, they might possess many health benefits. Although research is limited, some studies suggest that probiotics may help prevent or treat a number of conditions and improve overall health and wellness. Probiotics are found in food sources as well as dietary supplements.
Predation is when one organism eats another organism to obtain nutrients. The organism that is eaten is called the prey. Examples of predation are owls that eat mice, and lions that eat gazelles. Competition is when individuals or populations compete for the same resource, and can occur within or between species.redation is when one organism eats another organism to obtain nutrients. The organism that is eaten is called the prey. Examples of predation are owls that eat mice, and lions that eat gazelles. Competition is when individuals or populations compete for the same resource, and can occur within or between species.
Symbiosis is a close, prolonged association between two (or more) organisms of different species that may, but does not necessarily, benefit each member. The specific biolog â¦ ical interactions of symbiosis can be subdivided in three:   * Mutualism, where both organisms benefit.ndo= inside; within   symbiosis= A close, prolonged association between two or more  different organisms of different species that may, but does not  necessarily, benef â¦ it each member. 12 people found this useful.