Across
- 4. Areas with water-saturated soil, supporting aquatic and semi-aquatic plants.
- 7. The study of the geographic distribution of animal species.
- 9. A cold biome with low-growing plants and permafrost.
- 11. A plant that lives for multiple growing seasons.
- 12. A non-native species that disrupts local ecosystems.
- 13. A plant producing seeds without flowers; examples include pine and fir.
- 15. A large ecological region defined by its climate, vegetation, and animal life.
- 17. A biome with sparse vegetation, adapted to arid conditions.
Down
- 1. A plant producing seeds within flowers; examples include oak and maple.
- 2. A distinguishing characteristic of plants, allowing them to produce food.
- 3. A species introduced to an area where it is not native.
- 5. Greater in tropical biomes and lower in polar regions.
- 6. A plant that completes its life cycle in one growing season.
- 8. A community of living organisms interacting with their physical environment.
- 10. An animal without a backbone, such as an insect.
- 14. Animals characterized by fur, warm-bloodedness, and milk production.
- 16. An animal with a backbone, such as a mammal.