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(also called physical digestion) the breaking down of food into smaller pieces using mechanical (physical) means, e.g. chewing and peristalsis.
a species that has been introduced into an area in which it did not previously or naturally...
the end part of the digestive system that consists of the caecum, colon, rectum and anus.
(also called caustic soda) a white solid, available in pellets, flakes or granules, with the...
this muscle 'closes' or bends the joint when it contracts (so the angle between the bones...