Final answer:
An autotroph can produce its own food, while a heterotroph relies on consuming other organisms for energy.
Step-by-step explanation:
An autotroph is an organism that can produce its own food using energy from the environment. These organisms are able to convert inorganic substances, such as carbon dioxide and sunlight, into organic compounds through a process called photosynthesis. Plants, algae, and some bacteria are examples of autotrophs.
A heterotroph is an organism that cannot produce its own food and relies on consuming other organisms for energy. Heterotrophs obtain nutrients by consuming autotrophs or other heterotrophs. Animals and fungi are examples of heterotrophs.
Learn more about Autotrophs and Heterotrophs