Outside raw materials used by an organism are:-
1. Autotrophic Organism- mainly use outside raw materials such as carbon dioxide, water, minerals and sunlight to synthesize its own food through photosynthesis.
2.Heterotrophic Organism- use outside raw material such as ready-made, organic food to grow and synthesize important substances needed in the body.
Most of the organisms need oxygen (from outside air) for the process of respiration.
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