DENDROLOGY

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: -Heterotrophs are a type of organism that mainly eats and relies on other plants or animals for energy and nutrients. Some plants do not contain chlorophyll and they depend on other plants for their food.

Detailed explanation-3: -Some examples of autotrophs are Algae, Phytoplankton, Seaweed, Wheat, Grass, Maize plant, bacteria, blue-green algae, and Cyanobacteria. All plants have a mode of autotrophic nutrition to keep producing their own food.