Chapter 20 Study Guide
Name______Period ______
1.What are abiotic factors in terrestrial biomes? Name at least five.
2. What are biotic factors in terrestrial biomes? Name at least five.
3. The base of the ocean’s food chains is formed by ______
4. What are abiotic factors in marine ecosystems?
5. The place where the ocean meets the land is the ______.
6. The ocean floor, some parts of which get no sunlight, is the ______.
7. The area that contains the deep water of the open ocean and is where the sea floor drops sharply is the ______
8. The area that has warm, sunlit water and is where the ocean floor begins to slope downward is the ______.
9. List examples of how an organism adapts to living in fast-moving water.\
10. Many plants can grow in the littoral zone of a lake because ______.
11. The main food for organisms in the deep-water zone is ______.
12. Where does the open-water zone of a lake end?
13. How do wetlands help replenish underground water supplies?
14. An ecosystem with wet soil, willow trees, and orchids is called a ______.
15. A lake may become a forest when ______.
16. Name some biotic factors in a biome.
17. The speed of water is an important abiotic factor in a freshwater ecosystem because ______.
18. One important abiotic factor in marine ecosystems is the ______.
19. From where do plankton get food?
20. What may happen as sediment and decaying organisms build up in a pond?
21. How can the littoral zone of a lake or pond be described?
22. Prairies, steppes, and pampas are types of ______.
23. Which type of wetland is characterized by plants hanging from tree branches?
24. Describe savannas.
25. A major abiotic factor that affects freshwater ecosystems is ______.
26. The most biologically diverse biome is the ______.
27. What is permafrost?
28. What is a key abiotic factor in rivers?
29. List ocean animals that need warm water to live.
30. How does a swamp differ from a marsh?
31. Which ocean temperature zone is the warmest?
32. Describe an intertidal area.
33. What makes it possible for many animals to live in the polar ice ecosystem?
34. Which lake zone is closest to the land’s edge?
35. Name the driest biome.
36. Name the coldest biome.
37. Name the hottest biome.
38. What biome has permafrost?
39. In what biome would you find animals that hibernate during the winter?
40. In what biome would you find animals that have adaptations to conserve water?
41. In what biome do you find trees that produce cones?
42. In what biome do trees lose their leaves to conserve water for the winter?
43. How is a Savanna different from a temperate grassland?
44. Which biome has the highest average rainfall?
45. In which biome do we live?