Our teeth bite or tear. they also chew food and break it down into smaller pieces. saliva breaks down food even further as it then travels to our esophagus. your esophagus food travel into your stomach where food is stored and broken down some more before moving into your small intestine. all of these parts working together create an important process for human survival. what is this important process called?
a) digestion
b) hibernation
c) photosynthesis
d) respiration