This question delves into the fundamental nature of what it means to be a human being. On one hand, a human is an individual organism, a unique entity with its own physiological systems and consciousness. However, at a microscopic level, our bodies are home to trillions of microorganisms, including bacteria, fungi, and viruses, which play crucial roles in our health and functioning. These microorganisms essentially create a complex ecosystem within us that contributes to our overall being.
Now, considering humanity as part of a larger system in the universe raises fascinating questions. Just as our bodies are composed of various organisms working together, the universe itself may be a vast, interconnected system where each person, planet, and star plays a specific role. We often think of ourselves as isolated individuals, but we are part of a larger network of existence, influenced by the cosmos and interacting with it in ways we are still trying to understand.
Thus, to answer the question: Yes, we are both an organism and a collection of microorganisms, and one could argue that we are also part of a grand, functioning system in the universe that we are yet to fully comprehend. Our lives are intertwined not only with the microbial world within us but also with the vastness of the universe around us.