2. Which of the following play a key role in nutrition ?
Assimilation Expulsion of wastes Regular exercis
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I hope assimilation is correct
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Assimilation play a key role in nutrition.
Explanation:
- Digestion and absorption consists of 4 steps. They are ingestion that is intake of food in the buccal cavity, absorption that is the collection of food in the blood, assimilation that is aerobic respiration of the broken food and egestion excretion of undigested food.
- Assimilation is the aerobic respiration of the small food materials. This results in gaining of the energy from the food. This produces energy and the most essential part of digestion.
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