Here’s the matching of organisms with their corresponding trophic levels:
- Humans - Tertiary Consumer
- Algae - Producer
- Mushroom - Decomposer
- Hawks - Secondary Consumer (Note: Hawks can also be considered tertiary consumers depending on the ecosystem context, but typically they are at the top of the food chain and can be classified as tertiary consumers).
However, hawks may primarily be secondary consumers if we consider them preying on primary consumers. Always ensure to check the specific ecological context in such classifications.