Biology, 18.11.2020 01:00 LunaShiner

When food enters the digestive system, it - A) is transferred through the system by the force of gravity pulling the food
B) is transferred through the system by the force of muscles contracting and pushing the food
C) is transferred through the system by the force of muscles relaxing and pulling the food
D) is transferred through the system by the force of muscles relaxing and pushing the
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When food enters the digestive system, it - A) is transferred through the system by the force of gr...