Fig reproduction and fig wasps are a common example used.
However, you're looking for two organisms so predator and prey. This could be Coyote and Deer, Lion and Gazelle... You name it.
<span>An ecosystem consists of a population of organisms and its
physical environment, and a population is made up of many different
communities of organisms. Every one of the creatures of similar species
living together that live in a particular biological system are known
as a populace The people in the populace contend with one another for
sustenance, settling space, and mates.</span>
In Asia especially in China is consumed as food, also has a medicinal use, feeding animals and weaving baskets
<span>Infection is the term used to describe the process through microorganisms that cause diseases. The invasion of a host by a pathogenic microorganism multiplies in the tissues and the reaction of the host to its presence and to its possible toxins and can be caused by bacteria, fungi, viruses, protozoa or prions.</span>
