Chapter 2 vocab

2. A group of land ecosystems with similar climates and organisms
3. A leafy roof formed by tall trees in a forest.
4. A layer of shorter plants that grow in the shade of a forest canopy.
6. The process of changing free nitrogen gas into a usable form.
8. The area between the highest high-tide line and lowest low-tide line.
9. The region of shallow ocean water over the continental shelf.
10. A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
11. The study of where organisms live
14. Species that are carried to a new location by people.
18. The movement of organisms from one place to another
19. An organism that can make its own food
20. A consumer that eats both plants and animals

1. A tree that sheds its leaves and grows new ones each year.
5. The very slow motion of the continents
7. A tree that produces its seeds in the cones and that has needle-shaped leaves
12. A consumer that eats only plants
13. A habitat in which the fresh water of a river meets the salt water of the ocean.
15. A consumer that eats only animals
16. Soil that is frozen all year.
17. A grassland close to the equator that receives as much as 120 centimeters