Science A, Combined (9-1) - Gateway Science Suite J250 9-1: B4: Community level systems Topical Past Paper Questions

## Dodo The dodo lived in the forests on the island of Mauritius. They evolved from a much smaller pigeon that flew to the island. Pigeons escape predators by flying away; they nest in trees so predators find it harder to eat their eggs. There were originally no predators or huma…

The picture is of a sword-billed hummingbird feeding on a flower. The hummingbird feeds on nectar from the flower. The flower benefits because the hummingbird transfers pollen from one flower to the next. This helps the flower to reproduce and develop seeds. (a) What word describ…

(a) Materials cycle through the environment. Complete these sentences about recycled materials. Carbon inside carbohydrates is released back into the atmosphere by the process of Water that collects in lakes can be returned to the atmosphere when the water (b) The flowchart in Fi…