AP BIOLOGY

Detailed explanation-1: -An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.

Detailed explanation-2: -Because most autotrophs transform sunlight to make food, we call the process they use photosynthesis. Only three groups of organisms-plants, algae, and some bacteria-are capable of this life-giving energy transformation. Autotrophs make food for their own use, but they make enough to support other life as well.

Detailed explanation-3: -Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs.