| Autotrophic Mode of Nutrition | Heterotrophic mode of nutrition |
| The organisms (green plant) make food in their body | The organisms (non-green plant and animals) depends on food made by green plant. |
| Possible only in the presence of sunlight | Possible at all times. |
| Makes complex organic compounds from simple inorganic materials | Takes in complex organic compounds and break them down into simple absorbable forms |
| Food made by the process of photosynthesis and chemosynthesis | Food is taken in by holozoic, saprophytic, symbiotic, and parasitic methods. |
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