Across
- 3. a group of ecosystems with similar climates and organisms
- 4. a layer of shorter trees and vines, shady
- 9. frozen soil
- 10. dense forests found in the Northern Hemisphere
- 12. area populated mostly by grasses and other nonwoody plants
- 13. a leafy rook in the rainforest
- 14. extremely cold and dry areas
Down
- 1. trees that produce their seeds in cones and have leaves shaped like needles
- 2. an area that receives less than 25 cm of rain each year
- 5. the tallest layer of the rainforest that receives the most sunlight
- 6. the average annual temperature and amount of precipitation in an area
- 7. trees that shed their leaves and grow new ones each year
- 8. forests in which large amounts of rain fall year-round
- 11. scattered shrubs and trees grow here, along with grass