Humans are heterotrophs, meaning we cannot produce our own food like plants do through photosynthesis. We rely on other organisms for our food, making us consumers in the food chain.

Here's a breakdown:

* Producers: Plants and some bacteria make their own food using sunlight, water, and carbon dioxide.

* Consumers: Animals, including humans, eat producers (plants) or other consumers to obtain energy.

* Decomposers: Fungi and bacteria break down dead organisms and waste, returning nutrients to the ecosystem.

So, the answer to your question is that humans are consumers because we must eat other organisms to survive.