Question

what is hetrotrophic nutrition?name different types of hetrotrophic nutrition , define them​

Answer 1

HETEROTROPHIC NUTRITION ;=

Heterotrophic nutrition is that type of nutrition in which an organism derive its food from other animals or plants . The organisms which are not able to make their own food, fall in this group.

TYPES OF HETEROTROPHIC NUTRITION;-

1.Holozoic nutrition:  In this type of nutrition complex food is taken into a specialist digestive system and broken down into small pieces to be absorbed.

E.g- Giraffe,lion,human beings etc.

2.Saprophytic nutrition: Saprophytic nutrition deals with the organisms who feed on dead organic remains of other organisms.

E.g- Fungus and some bacterias ( mushroom,etc)

3.Parasitic nutrition:  In this, organisms obtain food from other living organisms (the host), with the host receiving no benefit from the parasite.

E.g- Amarbel, leech,intestinal worms,etc.

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Answer 2

Explanation:

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All animals and non-photosynthetic plants are classified as heterotrophs since they are unable to prepare food. So these organisms resort to other various forms of nutrition. Hence, from an ecological perspective, heterotrophs are always secondary or tertiary consumers in a food chain

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There are 3 types of Hetrotrophic nutrition

• Holozoic Nutrition
• Saprophytic Nutrition
• Parasitic Nutrition

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Holozoic:

Holozoic nutrition involves the ingestion and internal processing of solid and liquid food in an organism. This involves the steps of ingestion, digestion, absorption, assimilation and excretion.

Saprophytic:

Saprophytes (animals which follow saprophytic nutrition) feed on dead and decayed organisms for energy. They are an important part of the ecosystem as they help to keep our environment clean and recycle nutrient back into the ecosystem

Parasitic:

Organisms that live in or on other organisms and acquire food at the expense of its host are called parasites. Most parasites are harmful to the hosts’ health; sometimes, they even kill the host. Both animals and plants may serve as a host.

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