The seedling belongs to the left circle, and the baby bird belongs to the right circle. The number 1 is in the intersection, indicating a shared characteristic. Based on the provided statements, the seedling will grow bigger (1), have flowers (3), and need air and water (9). The baby bird will learn to fly (7), have feathers (5), and won't move about (8). The statement 'It won't make seeds' (2) is circled, implying it's a characteristic of the seedling. The statement 'It won't learn to swim' (4) and 'It won't lay eggs' (6) are characteristics of the baby bird. Therefore, the numbers should be placed as follows: Left circle (seedling only): 1, 2, 3, 9. Right circle (baby bird only): 4, 5, 6, 7, 8. Intersection: No numbers are explicitly placed in the intersection in the diagram, but if there were a shared characteristic, it would go there. Since no shared characteristics are listed, the intersection remains empty.