Land Biomes

3. A type of forest biome that consists mainly of cone-bearing evergreen trees and has thin, acidic soil
7. Biomes that receive very little rain and are typically hot during the day but cold at night.
10. All of the living or once-living parts of an ecosystem
11. Number of major land biomes on Earth
12. The variety of life that exists within an ecosystem
13. forests Most common forest ecosystems in the United States
14. Areas classified as the same biome have similar _______ and organisms.
15. Regions of Earth between the tropics and polar circles are __________ regions.

1. Layer of permanently frozen soil in the tundra that prevents deep growth of plant roots
2. Also called meadows, prairies, and savannas and have deep, fertile soil that supports plant growth
4. Type of rain forests that receive large amounts of rain and have dense growths of tall, leafy trees
5. A geographic area on Earth that contains ecosystems with similar biotic and abiotic features
6. The biotic and abiotic parts of the environment make up a _____________.
8. A cold, dry, treeless biome that is characterized by a limited growing season and permafrost
9. All of the nonliving parts of an ecosystem that help the living parts survive