Across
- 3. The scientific study of the relationships between living organisms and their physical environment.
- 4. A species at high risk of becoming extinct in the wild.
- 7. The variety of life in a particular habitat or ecosystem.
- 8. A species that is native and restricted to a certain geographical area.
- 10. The state or fact of continuing to live or exist, especially in spite of difficult conditions.
Down
- 1. The protection and preservation of wildlife and their habitats.
- 2. A biological community of interacting organisms and their physical environment.
- 5. The complete disappearance of a species from Earth.
- 6. A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
- 9. The natural home or environment of an animal, plant, or other organism.