Question

defined nutrition. what are the differences between autotrophic and heterotrophic nutrition?
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Answer 1

Explanation:

Autotrophs are organisms that prepare their own food through the process of photosynthesis, whereas heterotrophs are organisms that cannot prepare their own food and depend upon autotrophs for nutrition.”

Answer 2

Autotrophic nutrition :  

• In this mode of nutrition, food is synthesized from the inorganic substances.
• For autotrophic nutrition, chlorophyll and sunlight are required.
• Food is generally prepared at day time.
• All green plants and some bacteria possess autotrophic mode of nutrition.
• Organism prepares its own food.
• It is independent for its food requirements.
• eg :green plants

Heterotrophic nutrition :

• In this mode of nutrition,  food is obtained from the autotrophs or another organisms.
• For heterotrophic nutrition, chlorophyll and sunlight are not required.
• Food can be obtained any time.
• All fungi and animals possess heterotrophic mode of nutrition.
• Organism does not prepare its own food.  
• It depends on plants for food requirements
• eg :animals, human beings etc.

hope it helps ..............