Autotrophic: organisms that can produce organic nutrients by themselves, such as green plants, can produce organic matter through photosynthesis, and some bacteria can synthesize lotus flowers.

Heterotrophic type: organisms that cannot produce organic nutrients by themselves, but rely on ready-made organic nutrients, such as all animals and microorganisms living in saprophytes and parasites.

The fundamental difference between autotrophs and heterotrophs is that they can transform simple inorganic substances into organic substances.

Extended data:

In terms of species, autotrophs can be divided into photoautotrophs and chemoautotrophs. Photoautotrophic type refers to the autotrophic type that uses light energy to synthesize organic matter from carbon dioxide in the atmosphere and water in the soil. The chemoautotrophic type refers to the autotrophic type that uses the energy released by the oxidation of ammonia into nitrate ions to synthesize organic matter from carbon dioxide in the atmosphere and water in the soil.

Heterotrophic lifestyle:

Cohabitation is beneficial to each other, and it is impossible to live independently after separation, forming a * * * relationship; Two creatures live together, one benefits and the other suffers, and the latter provides nutrients and living places for the former, forming a parasitic relationship; Any organism that obtains nutrients from animal and plant carcasses or decaying tissues to maintain its own life is called saprophyte.

References:

Baidu encyclopedia-autotrophic

References:

Baidu encyclopedia-heterotrophic type