Biodiversity includes variation within species, between species and among ecosystems. Resilience means resisting a disturbance or recovering after it. Diversity can support resilience when organisms respond differently or provide overlapping functions. More species alone does not guarantee safety from every disturbance. Safety: No wildlife collection or release. Stop: Stop after analysing the paper networks. Do not introduce, remove or count organisms outdoors.

Materials: Paper; Pencil 1. Make three labelled examples: genetic—different inherited drought tolerance within one grass species; species—grasses, bees and beetles in a meadow; ecosystem—nearby meadow, woodland and wetland. Explain why the examples describe different levels. 2. Copy this illustrative pollination network: bee A visits flower X; bee B visits X and Y; fly C visits Y. Cross out bee A after a fictional disease. Show which pollination links remain. Compare with a second network where only bee A visits X. 3. Write threat → change → possible consequence chains for forest clearance, fertiliser pollution reaching water, an introduced predator becoming invasive, and greenhouse-gas-driven warming. An introduced species is not automatically invasive; harmful spread is the concern. 4. Choose two consequences for people: reduced crop pollination, changed water quality or lost habitat protection. Explain the link. Add one missing fact before forecasting recovery, such as whether bee B is also affected by the disease. Done: Complete the three-level examples, two network comparisons and at least three threat chains. Proof: Keep the network sheet. Note if an adult named the remaining link or supplied a human benefit. Stop: Stop after analysing the paper networks. Do not introduce, remove or count organisms outdoors.