Wstaw: pond, snails, connected, fish, garden, water, frogs, eggs, weeds, clean, eating, flies, produces.
In my …... there is a …... . In this ecosystem the sun ….... energy for the water weeds. The flies lay their ….... on the water weeds. The …..... live in water ...... and feed on the ...... and lay their eggs in the...... . The ..... keep the water clean by ...... the rotting vegetation. The.... also keep the water .....
by eating bacteria and micro-organism. All the parts are ....