Across
- 4. a series of events where one organism eats another to obtain energy
- 11. a grassland close to the equator that receives as much as 120 cm of year per year
- 12. soil that is frozen all year
- 13. the process of changing free nitrogen gas into a usable form
- 16. the movement of organisms fro one place to another
- 17. area between the highest high tide and lowest low tide
- 19. the study of where organisms live
- 20. the continuous process where water moves from earths surface to the atmosphere and back
- 21. an organism that breaks down wastes and dead organisms
- 23. a tree that produces its seeds in cones and has needle shaped leaves
- 26. a consumer that eats only animals
- 27. a group of land ecosystems with similar climates and organisms
- 28. a habitat where the fresh water of a river meets the salt water in the ocean
- 29. an organism that obtains energy by feeding on other organisms
- 31. an area populated by grasses and non woody plants.
- 32. a leafy roof formed by tall trees in a forest
Down
- 1. a carnivore that feeds on the bodies of dead organisms
- 2. rain, snow, sleet, or hail
- 3. a pattern of overlapping food chains in an ecosystem
- 5. process where molecules of a liquid absorb energy and change into a gas
- 6. an extremely cold, dry biome
- 7. an area that receives less than 25 cm of precipitation a year
- 8. very slow motion of continents
- 9. a consumer that eats only plants
- 10. a tree that sheds its leaves and grows new ones each year
- 14. region of shallow ocean water over the continental shelf
- 15. typical weather pattern in an area over a long period of time
- 18. a diagram that shows the amount of energy that moves from one feeding level to another in the food web
- 22. a consumer that eats both plants and animals
- 23. gas changing into a liquid
- 24. a layer of shorter plants that grow in the shade of a forest canopy.
- 25. an organism that can make its own food
- 30. species species that are carried to new places by people