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tion of other ions and solutes. Water Reabsorption and Osmotic Gradients While sodium reabsorption is critical, water reabsorption is equally vital for urine concentration. Mechanisms include: Osmotic gradients: Generated

here students may need further clarification. Promote objective evaluation of student responses. Key Themes in Aftershocks and Corresponding Answer Key Highlights Theme 1: Resilience and Recovery Answer Key Insights: Characters often demonstrate resilience through acts of kindness and perseverance.