Define (i) Ingestion (ii) Egestion
Answers
Answer:
Egestion is the act or process of voiding or discharging undigested food as faeces. To egest means to discharge undigested material or food.
Explanation:
Explanation:
(i) Ingestion: Ingestion is the process of taking in food through the mouth. In vertebrates, the teeth, saliva, and tongue play important roles in mastication (preparing the food into bolus). While the food is being mechanically broken down, the enzymes in saliva begin to chemically process the food as well.
(ii) Egestion: Excess water is absorbed back into the body in the large intestine . What is left then is undigested food. This is stored in the rectum, the lower part of the large intestine, until we are ready to go to the toilet. It then comes out of the rectum through the anus as faeces. This process is called egestion .
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