DENDROLOGY

Detailed explanation-1: -Heterotrophs cannot make their own food, so they must eat or absorb it. For this reason, heterotrophs are also known as consumers. Consumers include all animals and fungi and many protists and bacteria. They may consume autotrophs or other heterotrophs or organic molecules from other organisms.

Detailed explanation-2: -Autotrophs obtain energy and nutrients by harnessing sunlight through photosynthesis (photoautotrophs) or, more rarely, obtain chemical energy through oxidation (chemoautotrophs) to make organic substances from inorganic ones. Autotrophs do not consume other organisms; they are, however, consumed by heterotrophs.

Detailed explanation-3: -For example, if the autotrophs at the bottom of the food chain are removed, it will have a huge impact on the rest of the food chain. Autotrophs are the plants that produce their own food from sunlight. If the producers disappear, the primary consumers, which are animals that are herbivores, will have no food source.