chapter 2 crossword

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

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