Extinction

This study guide covers extinction and biodiversity, focusing on the definition and causes of extinction (natural disasters, climate change, human activities). It reviews major extinction events like the Permian-Triassic and Cretaceous-Paleogene, and discusses ongoing extinctions driven by human actions. The guide also explains ecological stress, speciation, and adaptive radiation, highlighting their roles in shaping biodiversity. Finally, it provides practice questions covering these key concepts.