Living Environment: Respatory and Digestive systems test tomorrow. ( study ALL notes) (25 multiple choice questions)
One way passage
Gastrointestinal tract
Extracellular digestion
PERISTALSIS: rhythmic muscular contraction, moves food down digestive tract
One way passage
Gastrointestinal tract
Extracellular digestion
PERISTALSIS: rhythmic muscular contraction, moves food down digestive tract
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