Autotrophic, with photosynthetic pigments, can make organic nutrients for their own growth through photosynthesis.

Heterotrophication, a life style without photosynthetic pigments, grows by absorbing organic nutrients made by other green plants.

Definition:

Heterotrophication: Inorganic substances can't be directly synthesized into organic substances, and ready-made organic substances must be ingested to maintain life, which is called heterotrophy.

Autotrophic: Green plants and chemotactic bacteria can convert inorganic substances into organic substances by solar energy and chemical energy respectively.

Extended data:

Autotrophic organism: an organism that can obtain nutrients and energy needed for its own life activities from the process of synthesizing organic matter from inorganic substances.

Autotrophic organisms include green plants such as algae, mosses, ferns and seed plants. They rely on their unique chloroplasts and use solar energy to synthesize organic substances from carbon dioxide and water to feed themselves. There are also some chemically synthetic bacteria, such as nitrifying bacteria, sulfur bacteria and iron bacteria. They can oxidize inorganic substances and use the energy released by oxidation to produce needed nutrients.

Heterotrophs is a consumer of organic matter in the ecosystem, and it is a creature that can only rely on ready-made organic matter for food and get energy from it. Include Bacillus subtilis, aerobic bacteria, anaerobic bacteria and denitrifying bacteria.