The action of salivary amylase in the mouth is an example of
a. chemical digestion.
b. chewing.
c. mechanical digestion.
d. peristalsis and segmentation.
A
Salivary amylase is an enzyme that chemically digests starch in the mouth. Chewing is an exam-ple of mechanical digestion. Peristalsis and segmentation help propel food along the gastrointes-tinal tract and mix food with intestinal secretions.
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