Could ecological roles offer clues to how life began?

Producers, consumers, and decomposers play different roles in today's ecosystems. Thinking about these familiar roles led me to a question: Could their differences partly reflect the different physical and chemical environments in which early life developed? I wondered whether th

Producers, consumers, and decomposers play different roles in today's ecosystems. Thinking about these familiar roles led me to a question: Could their differences partly reflect the different physical and chemical environments in which early life developed? I wondered whether the organization of ecosystems might offer a useful starting point for thinking about life's beginnings.