Final answer:
Grass is an example of an autotroph that can produce its own food using energy from the environment through photosynthesis.
Step-by-step explanation:
An autotroph is an organism that can produce its own food using energy from the environment. Grass is an example of an autotroph because it uses photosynthesis to convert sunlight into energy, which it uses to synthesize glucose. This process allows the grass to sustain itself without relying on other organisms for nutrients.
Learn more about Autotrophs