All animals are
  1. parasitic
  2. saprophytic
  3. autotrophic
  4. heterotrophic

Correct Answer: (d) heterotrophic 


All animals are heterotrophic.

Organisms that cannot make their own food from inorganic substances like carbon dioxide and water, but depend on other organisms for their food are called heterotrophs.

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. 

All animals, fungi, and non-photosynthesizing plants are heterotrophic. 

In the food chain, heterotrophs are primary, secondary and tertiary consumers, but never the producers.

In the autotrophic mode of nutrition, an organism makes its own food from the simple inorganic materials like carbon dioxide and water present in the surroundings (with the help of sunlight energy)

Example: Green Plants


Simply Easy Learning

Updated on: 12-Jan-2023


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