Titlebook: Making Use of Biology; Pauline Alderson,Martin Rowland Textbook 1995Latest edition P. Alderson and M. Rowland 1995 animals.bacteria.biolog

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Eating and DietWhen we eat, we take food in at the mouth, chew it and swallow it. This is how food enters the gut, a continuous tube which includes the ., the . and the . and which goes all the way from the mouth to the .. Some food is absorbed into the body from the gut. What is not absorbed is got rid of from the anus as ..