Name: ____________________________________________________
Homework: Biomes and Ecosystems Ch 41
Honors Biology
In the space provided, write the letter of the description that best matches the
term or phrase.
______1. tundra
a. boreal forest
______2. benthic zone
b. low rainfall with cactus and succulent plants
______3. taiga
c. Freshwater lake rich in organic matter
______4. pelagic zone
d. northernmost biome
______ 5. deciduous trees
e. freshwater lake with little organic matter
______6. eutrophic lake
f. ocean bottom
______7. coniferous trees
g. open ocean
______8 oligotrophic lake
h. trees that lose their leave each year
______9. desert
i. trees that bear seeds in cones
______10. photic zone
j. zone in ocean where photosynthesis occurs
11. The tundra’s layer of soil in which the water is always iced is called the
____________.
12. An aquatic ecosystem where organisms must be adapted to withstand
dehydration and crashing waves is known as the __________.
13. ___________ are distinguished by the presence of particular plants and animals
14. How are the different terrestrial biomes distinguished?
15. What are the three main types of grasslands and how are they characterized?
16. Why are trees rare in the tundra biome?
17. Why are the floors of tropical rain forest relatively free of vegetation?
18. What adaptations are required for organisms that live in the intertidal zone?
19. Why are freshwater wetlands important economically and environmentally?
20. What are the distinguishing characteristics of a tropical rain forest, and how do they
differ from those of temperate deciduous forests?
21. What are some adaptation of intertidal organisms that enable them to survive in
this zone?
22. Why is plankton important to aquatic ecosystems?
23. Explain why the productivity of the oceanic zone is high, even though nutrient
levels are low.
Identify the ocean zones labeled a-g in the diagram below
a. ____________________
b. ____________________
c. ____________________
d. ____________________
e. ____________________
f. ____________________
g. ____________________