# "Explain" questions — Eduqas GCSE Biology

> 154 questions · biology

## 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

1. [Explain how white blood cells defend the body against pathogens that have entered the bloodstream.](https://www.gradenine.co.uk/q/explain-how-white-blood-cells-defend-01d87bb3)
2. [Explain how the hormone adrenaline prepares the body for a 'fight or flight' response.](https://www.gradenine.co.uk/q/explain-how-the-hormone-adrenaline-prepares-0224d8df)
3. [Explain why mitosis is used for growth and repair in the human body, but meiosis is used for the production of gametes.](https://www.gradenine.co.uk/q/explain-why-mitosis-is-used-for-06d7eca4)
4. [Explain why a vaccine made from a dead or weakened pathogen can protect a person against the disease caused by the live …](https://www.gradenine.co.uk/q/explain-why-a-vaccine-made-from-07436a8f)
5. [A student states: 'Mitosis and meiosis both involve a cell dividing, so they must produce the same types of cells for th…](https://www.gradenine.co.uk/q/a-student-states-mitosis-and-meiosis-09aede22)
6. [Explain why it is important for the human body to maintain a constant internal environment.](https://www.gradenine.co.uk/q/explain-why-it-is-important-for-0baf9176)
7. [Explain why a habitat with a large number of different species is considered to have high biodiversity.](https://www.gradenine.co.uk/q/explain-why-a-habitat-with-a-0ceccd7f)
8. [Explain why a stable ecosystem such as a coral reef is able to support a large number of different species.](https://www.gradenine.co.uk/q/explain-why-a-stable-ecosystem-such-1246e956)

## Related

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