How does the meaning of root word symbiosis help you understand the meaning of endosymbiosis?

The root Word "symbiOSis" means a close and long-term relationship between two different organisms living together. EndosymbiOSis specifically refers to the process where one organism lives inside another, forming a mutually beneficial relationship. Understanding the meaning of the root Word "symbiOSis" helps us see that endosymbiOSis involves a similar concept of close interaction between organisms but with one living inside the other.