Across
- 4. regions that are wet for all or most of the year
- 5. portion of the shoreline that is covered with water at high tide and exposed to air during low tide
- 6. biome usually having four distinct seasons and climax community of deciduous
- 10. the driest biome on Earth
- 11. cold, dry, treeless region sometimes called a cold desert
- 12. the area where a river meets an ocean and contains a mixture of freshwater and saltwater
- 13. stable end stage of ecological succession in which balance is the absence of disturbance
- 14. large geographical areas that have similar climates and ecosystems
- 15. a cold forest region dominated by cone bearing evergreen trees
Down
- 1. temperate and tropical regions that receive between 25 cm and 75 cm of precipitation each year and are dominated by climax communities of grasses
- 2. soil that remains frozen all year long
- 3. first organisms to grow in a new area
- 6. biome with 200 to 400 cm with precipitation each year dominated by trees with needle like leaves
- 7. warm temperatures, wet weather and lush plants are found here
- 8. one of the most diverse ecosystems in the world
- 9. normal, gradual changes that occur in types of species that live in an area