All of the roles and relationships that an organism is a part of. In other words, how an organism lives in its ecosystem.

there are three major types of community relationships: symbiosis, predation, and competition. Symbiosis is a close relationship between two organisms of different species in which at least one of the organisms benefits. Types of symbiosis include mutualism, commensalism, and parasitism

Explanation:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

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