Final answer:
In a garden ecosystem, the bird is a predator, the earthworm helps break down organic matter, the flower is a producer, and the butterfly is both a pollinator and a food source.
Step-by-step explanation:
In the garden ecosystem, each organism plays a specific role:
- The bird acts as a predator, feeding on insects or small animals like earthworms.
- The earthworm plays a crucial role in maintaining the health of the system by breaking down organic matter into nutrient-rich compounds that plants need for growth.
- The flower acts as a producer, using sunlight to undergo photosynthesis and provide energy to other organisms in the ecosystem.
- The butterfly acts as both a pollinator for the flowers, helping them reproduce, and as a food source for birds and other predators.