Directions: Answer the Questions Completely and in Complete Sentences

Chapter 3-4 Name____________________________________

Study Guide

Directions: Answer the questions completely and in complete sentences.

1. What is biological magnification? What is bioaccumulation? Give an example.

2. What is the difference between a food chain and food web? Where would I find a trophic layer within a food chain?

3. Why is energy lost as you move up a food chain? What percentage is passed up between each member in the food chain?

4. What is the grouping of organisms from smallest to largest? Example Species, Community ...etc.

5. What characteristics does all species have in common?

6. What is the difference between a biomass, energy, and numbers ecological pyramid?

7. Draw a numbers and biomass pyramid using the following assumptions

1. 1 wolf can be in a 100 square mile area. You have 300 square miles.

2. 1 wolf needs to eat 1600 pounds of deer a year.

3. 1 wolf weighs 100 pounds

4. 1 deer weighs 150 pounds

5. 1 pounds of plants =2 plants

6. 1 deer eats 1500 pounds of vegetation

8. Draw a numbers and biomass pyramid using the following assumptions

1. 1 wolf can be in a 50 square mile area. You have 200 square miles.

2. 1 wolf needs to eat 1100 pounds of deer a year.

3. 1 wolf weighs 100 pounds

4. 1 deer weighs 150 pounds

5. 10 pounds of plants =20 plants

6. 1 deer eats 760 pounds of vegetation

9. What is the percentage of carbon dioxide in the atmosphere? What is percentage of nitrogen in the atmosphere?

10. What is the difference between a carbon sink and carbon source?

11. What is the difference between a carbon reservoir and carbon pool?

12. Why does animals need nitrogen?

13. Why is carbon important to living organisms?

14. Define the following.

a. nitrogen fixation:

b. nitrification:

c. assimilation:

d. ammonification:

e. denitrification:

15. Draw a diagram of the nitrogen cycle using the words above in your diagram.

16. What is a legume?

17. How have humans affected the nitrogen cycle that has had an effect on the Chesapeake Bay? Small change has big effects.

18. Tell me how many calories are used in each process and if the heat is absorbed or released.

A. Melting:

B. Freezing:

C. Deposition:

D. Sublimation:

E. Condensation:

F. Evaporation

19. What percentage of earth’s surface is water?

20. Of the all the water on the planet, what percentage of the water is saltwater?

21. What did the flat section on the 20 ml and 40 ml graphs represent during the water lab? Why were they flat?

22. The theoretical yield in a particular chemical reaction is 0.1062 g. The actual yield obtained by a chemist in an experiment is 0.0098 g. Calculate the percent error for this experiment.

23. After heating a 10.00 g sample of potassium chlorate, a student obtains an amount of oxygen calculated to be 3.90 g. Theoretically, there should be 3.92 g of oxygen in this amount of potassium chlorate. What is the percent error in this experiment?

24. Explain Mr . Wright’s famous saying.

25. Describe the following spheres

A. Hydrosphere:

B. Atmosphere:

C. Lithosphere:

D. Biosphere:

26. Why do organisms need phosphorus?

27. Explain the Geochemical Phase of the phosphorus cycle.

28. What are the main phosphorus reservoirs of phosphorus on our planet?

29. Explain the Ecological Land phase of the phosphorus cycle.

30. Describe the Ecological marine phase of the phosphorus cycle.