Answer:
True
Step-by-step explanation:
Autotrophic means making your own food, providing it without consuming other organisms. Heterotrophic is the opposite: think of the prefixes auto- meaning self and hetero- meaning different.
Most plants use photosynthesis to get energy from the sun; that's their own source, no eating other organisms necessary. Examples are grasses, flowers, trees.. most mainstream plants. There are a few exceptions, like something nasty like a Venus flytrap.