Question

Define mode of nutrition​

Answer 1

Explanation:

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MODE OF NUTRITION:-

There are mainly two types of nutrition named as Autotrophic and Heterotrophic!

Modes of nutrition are the ways in which living things get their food. Autotrophs make their own food. Green plants particularly do this with sunlight in a process called photosynthesis by using chlorophyll. Heterotrophs must eat to get their food.

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Answer 2

Answer:

Mode of nutrition: the way in which the nutrition is taken up by the living organism.

Nutrition is the process of taking food and using it for obtaining energy, growth and repair of the body Animals depend on other animals or plant for food. They either eat plants or animals or both to fulfil their nutritional needs.

It is mainly divided into two categories autotrophic (organisms prepare their own food) and heterotrophic (organisms obtain food from other organisms). Autotrophic mode of nutrition is further divided into two categories such as:

1. Phototrophic: Organisms prepare their own food in the presence of sunlight, water and carbon dioxide e.g., green plants.

2. Chemotrophic: Organisms prepare their own food in the presence of chemicals such as nitrate, hydrogen sulphate, iron etc, e.g., sulphur bacteria

Heterotrophic mode of nutrition is further divided into three categories such as:

1. Holozoic: Animals eat their whole food. It includes five stages of digestion such as ingestion, digestion, absorption, assimilation and egestion e.g., humans.

2. saprophytic: Organisms feed on dead and decaying organic matters. In this mode, organisms first convert the complex food into the simple form and then ingests them e.g., decomposers.

3. Parasitic: Organisms obtain food from other living organisms. In this mode, one organism (parasite) lives inside the other organism (host organism) and derive nutrients from that e.g., tapeworm.

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