The Organism | Tested

Organisms rely on others for food, oxygen, and decomposition.

Energy enters the system via the sun (plants), moves through consumers (animals), and is recycled by decomposers (fungi).

The basic unit. Unicellular organisms (like yeast) are just one cell. Multicellular organisms (like humans) have trillions. The Organism

No organism exists in a vacuum. They are part of an :

Regulate its internal environment (like temperature or pH). Organisms rely on others for food, oxygen, and decomposition

Create new individual organisms (sexually or asexually).

Different tissues working for a specific function (e.g., the heart). Organisms rely on others for food

Single-celled, no nucleus (Prokaryotes). Found everywhere from soil to your gut.