What type of digestion occurs when food is broken down by chewing?
Chemical digestion
Mechanical digestion
Cellular digestion
Enzymatic digestion
Chewing physically breaks food into smaller pieces without changing its chemical structure, which is mechanical digestion.
Which of these processes occurs in the mouth?
What is the primary function of saliva?
Where does most nutrient absorption occur?
What is the function of the esophagus?
Which organ is primarily responsible for water absorption?
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