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.
Another category of interactions between organisms has to do with close, usually long-term interaction between different types of organisms. These interactions are called symbiosis. The impacts of symbiosis can be positive, negative, or neutral for the individuals involved.o man is an island.â This saying is also true for organisms in an ecosystem. No organism exists in isolation.