"Explain" questions — WJEC GCSE Biology (Wales)
102 questions · biology · View as Markdown
How to answer
WHAT + WHY. Every point paired with a because. Structure: X happens because Y. This causes Z because … Assessment Objective: AO2. Every "explain" answer on this spec is marked against exactly this pattern.
Sample questions
- Explain why a person who has recovered from chickenpox is unlikely to become ill from the same disease again.
- Explain why the energy requirements of two people of the same age and body mass may be different.
- Explain why a habitat with a large number of different species is considered to have high biodiversity.
- Explain why decomposers are essential for returning nutrients to the soil, and describe what would happen to plant growt…
- A scientist investigates two samples of muscle tissue. Sample A is taken from a sprinter immediately after a 100 m race.…
- Explain how the nitrogen found in a dead animal's body is eventually made available to plants growing in the soil.
- Explain why reflex actions are important for survival.
- Explain why the left ventricle has a thicker muscular wall than the right ventricle.