Here's a breakdown:

* Community: A group of different populations of organisms (like plants, animals, bacteria) living and interacting in the same area.

* Nonliving parts (abiotic factors): These are the physical and chemical factors that make up the environment, like sunlight, temperature, water, soil, and minerals.

Together, the living community and the nonliving environment create a complex and interconnected web of relationships. This is what makes an ecosystem a functional unit.