Explain ingestion and it's role In human body
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Answer:
ingestion
Explanation:
Ingestion – the taking in of food
These function to ingest and digest food, absorb nutrients and remove undigested waste. Saliva moistens and lubricates the food, with the aid of a slippery substance called mucin, making swallowing easier as well as dissolving some of the food and allowing it to be tasted.
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Explanation:
A substance that is introduced into a organism, especially by means of a hypodermic syringe, as a liquid into the veins or muscles of the body. A function that maps each member of one set (the domain) to exactly one member of another set the range
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