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• 9848 - Stretch & Challenge Articles for Edexcel GCSE Biology Pack 2

Weblinks and videos for use with 9848 – Stretch & Challenge Articles for Edexcel GCSE Biology Pack 2

1: The Oxygen Apocalypse!

• Scientific American - The Origin of Oxygen in Earth's Atmosphere

2: Carnivores in the Plant World

• The Eden Project - Carnivorous Plants Facts

3: Sweet Dream Monotremes – Platypus Venom and Diabetes

• Diabetes UK

4: Holes in Stomachs

• Atlantic Digestive - Acid Reflux Fact Sheet

5: IVF Advances

• Nature - Northern White Rhino

6: The Male Pill? Approaches to Male Contraceptive Agents

• NHS - Contraception

7: Amazing Thermoregulation

• National Geographic - Deep Sea Hydrothermal Vents
• Harvard University - Deep Sea Hydrothermal Vents

8: Diseases of Blood: Sickle-cell Disease

• Sickle Cell Society

9: Lactic Acid – the Enemy of Athletes?

• EurekAlert! - Lactic Acid

10: Having a Change of Heart

• British Heart Foundation - Publications

11: Keystone Species

• The Keystone Species Concept That Transformed Ecology

12: Bioremediation

• Understanding Evolution - How Endosymbiosis Changed Life on Earth

13: Conservation: Getting it Right

• Food and Agriculture Organisation of the United Nations
• CGIAR - What are ecosystem services?

14: Mass Extinction

• Science News for Students - What killed the dinosaurs?