| A | B |
|---|
| biodiversity | the number of different species in an area |
| keystone species | species that is vital to its ecosystem |
| extinct | all members of the species gone from Earth |
| endangered | at risk of becoming extinct |
| threatened | at risk of becoming endangered |
| MAIN reason for loss of biodiversity | habitat loss |
| non-native species that damages an ecosystem | invasive species |
| when a large habitat is divided into smaller parts | habitat fragmentation |
| biome with highest biodiversity | tropical rainforest |
| species | group of closely related organisms that can mate |
| adaptation | trait/behavior that helps an organism survive or reproduce |
| climate change | the change in weather that is the result of higher global temperatures |
| environmental changes | pollution, new predators/prey, habitat loss, natural disasters, climate change |
