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What are the differences between autotrophic nutrition and heterotrophic nutrition?

Answer

The differences between Autotrophic and Heterotrophic Nutrition is as follows :

Autotropic Nutrition Heterotrophic Nutrition
involves preparation of food by the organism itself Food is obtained directly or indirectly from autotrophs
Raw materials like CO 2 and H 2 O are required CO 2 and H 2 O are not required.
Solar energy is converted into chemical energy by photosynthetic pigments and then used for making food. Chemical energy is not taken up directly instead it is obtained from the food taken in
Chlorophyll is needed Chlorophyll plays no role in this type of nutrition.
Autotrophic nutritioni is seen in producers, thus it occurs at the  primary level in a food chain This type of nutrition is observed at the secondary and tertiary level in food chain
Examples : Green Plants, Blue Green Algae Examples : All Animals, Most bacteria
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