# State four features that distinguish mammals from all other vertebrate classes.

> Cambridge International IGCSE Biology (0610) — 1.2 Concept and use of a classification system · State · 4 marks

## Mark scheme (4 marks)

1. Mammals have hair or fur on the body
2. Mammals have mammary glands (to feed young with milk)
3. Mammals produce live young (rather than laying eggs)
4. Mammals are homoiothermic (warm-blooded / maintain a constant internal body temperature)

## Key terms

- [mammals](https://www.gradenine.co.uk/glossary/mammals)

## Related

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Source: [GradeNine](https://www.gradenine.co.uk/q/state-four-features-that-distinguish-mammals-4b0a4098) · Published by Druglandscape Ltd.