Across
- 5. a mass of calcium carbonate composed of skeletons of marine organisms known as coral
- 10. layer of aquatic ecosystem without sunlight
- 11. area near a river that periodically floods
- 12. organic matter or biomass
- 14. sheeplike period similar to hibernation but in hot/dry conditions
- 15. bottom of body of water
- 17. a group of ecosystems that share similar biotic and abiotic conditions
- 19. zone shallow portion of photic zone
- 20. uppermost layer of aquatic ecosystem with sunlight
- 21. body of water that occurs where rivers flow into a sea
Down
- 1. area of land flooded with water part of year
- 2. top layer of rainforest
- 3. soil that remains frozen all year-round
- 4. area of water with no rooted plants
- 6. average conditions including temperature and precipitation in a given period
- 7. dense covering at top of rainforest
- 8. trees that produce seed-bearing cones
- 9. climate diagram that describes the conditions of a biome
- 13. trees plants that make up area under canopy
- 16. trees that lose leaves
- 18. measurement of salt dissolved in water
- 22. plants that grow on other plants instead of in soil