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Trace Digestion and Respiration Practice Test
•10 QuestionsQuestion
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Q1
A student uses the model to trace matter through multiple processes (digestion and respiration).
Model (simplified):
Food → digestive system → blood → body cells
O₂ → lungs → blood → body cells
Body cells → CO₂ → lungs → out
Undigested matter → feces → out
A student draws an extra arrow in the model: “Food → stomach → lungs → CO₂ out.”
Which is the best error detection based on tracing matter in the model?
A student uses the model to trace matter through multiple processes (digestion and respiration).
Model (simplified):
Food → digestive system → blood → body cells
O₂ → lungs → blood → body cells
Body cells → CO₂ → lungs → out
Undigested matter → feces → out
A student draws an extra arrow in the model: “Food → stomach → lungs → CO₂ out.”
Which is the best error detection based on tracing matter in the model?