define Heterotrophic Nutrition
Answers
Explanation:
Heterotrophic nutrition is a type of nutrition in which organisms depend upon other organisms for food to survive. Heterotrophic organisms have to take in all the organic substances they need to survive.
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Answer:
Heterotrophic nutrition - definition
In a heterotrophic mode of nutrition, organisms directly or indirectly depend on autotrophs for food.
Organisms which show this mode of nutrition are called Heterotrophs. They cannot prepare their own food.
Types of heterotrophic nutrition - definition
Based on the source of nutrition, heterotrophic mode of nutrition can be divided as follows:
Saprophytic nutrition: In this mode of nutrition, organisms obtain nutrients from dead and decaying organic matter. These organisms are called Saprophytes. Example: Yeast
Parasitic nutrition: In this mode, the organism lives inside or outside the body of another organism. It takes nutrition from the other organism without killing it. Such organisms are called parasites. Example: Ascaris (roundworm) are parasites on the human body.
Holozoic nutrition: Organisms which show holozoic nutrition feed on complex matter. This matter is digested and nutrients are absorbed. Example: Human beings