1. Unit Review! Dec 5, 2013 By what process is CO2 removed from the atmosphere? a. Respiration b. Combustion c. Photosynthesis d. Decomposition

2. Unit Review! Dec 5, 2013 By what process is CO2 removed from the atmosphere? c. Photosynthesis

3. Unit Review! Dec 5, 2013 Other than adjusting the amount of light, what other variable might a scientist manipulate to increase the rate of photosynthesis by a plant?

4. Unit Review! Dec 5, 2013 Other than adjusting the amount of light, what other variable might a scientist manipulate to increase the rate of photosynthesis by a plant? Increase water or CO 2

5. Unit Review! Dec 5, 2013 If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars? a. More sugars will be produced. b. The same number of sugars will be produced but without carbon dioxide. c. Carbon dioxide does not affect the production of high-energy sugars in plants. d. No sugars will be produced.

6. Unit Review! Dec 5, 2013 If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars? d. No sugars will be produced.

7. Unit Review! Dec 5, 2013 Why do ecosystems rarely contain more than a few trophic levels? a. Energy transfer efficiency is high. b. Energy transfer efficiency is low. c. Energy amounts remain constant. d. Energy cannot flow through levels.

8. Unit Review! Dec 5, 2013 Why do ecosystems rarely contain more than a few trophic levels? b. Energy transfer efficiency is low.

9. Unit Review! Dec 5, 2013 In the carbon cycle, atmospheric carbon dioxide is converted into organic (living) material by which process? a. cellular respiration b. decomposition c. photosynthesis d. transpiration

10. Unit Review! Dec 5, 2013 In the carbon cycle, atmospheric carbon dioxide is converted into organic (living) material by which process? c. photosynthesis

11. Unit Review! Dec 5, 2013 The carbon (in the carbon dioxide) that we breathe out has come originally from our a. cells b. skin c. diaphragm d. food

12. Unit Review! Dec 5, 2013 The carbon (in the carbon dioxide) that we breathe out has come originally from our d. food

13. Unit Review! Dec 5, 2013 The oxygen in Earth’s atmosphere comes mainly from? a. the chemical separation of water molecules in the oceans. b. the chemical breakdown of minerals in the soil. c. the process of photosynthesis occurring in green plants and algae. d. the process of cellular respiration occurring in all organisms.

14. Unit Review! Dec 5, 2013 The oxygen in Earth’s atmosphere comes mainly from? c. the process of photosynthesis occurring in green plants and algae.

15. Unit Review! Dec 5, 2013 The main result of aerobic respiration is the? a. conversion of radiant energy into chemical energy b. production of lactic acid as an end product c. storage of energy in a polysaccharide d. production of ATP from the breakdown of glucose.

16. Unit Review! Dec 5, 2013 The main result of aerobic respiration is the? d. production of ATP from the breakdown of glucose.

17. Unit Review! Dec 5, 2013 Which of the following statements are true? a. Plants respire and animals photosynthesize. b. Animals only respire and only plants photosynthesize. c. Animals and plants both respire. d. Animals and plants photosynthesize.

18. Unit Review! Dec 5, 2013 Which of the following statements are true? c. Animals and plants both respire.

19. Unit Review! Dec 5, 2013 the coyotes would be considered. a. herbivores b. second-order consumers c. decomposers d. third-order consumers

20. Unit Review! Dec 5, 2013 the coyotes would be considered. b. second-order consumers

21. Unit Review! Dec 5, 2013 energy flows from. a. coyotes to grasses b. cats to mice c. mice to cats d. coyotes to cats

22. Unit Review! Dec 5, 2013 energy flows from. c. mice to cats

23. Unit Review! Dec 5, 2013 as matter and energy move from grasses to coyotes, the amount of available energy. a. increases b. decreases then increases c. increases or decreases but population size remains the same d. decreases

24. Unit Review! Dec 5, 2013 as matter and energy move from grasses to coyotes, the amount of available energy. d. decreases

25. Unit Review! Dec 5, 2013 Describe the role of algae illustrated in Figure 3.

26. Unit Review! Dec 5, 2013 Describe the role of algae illustrated in Figure 3. **It provides the energy for the entire food chain

27. Unit Review! Dec 5, 2013 explain the relationship between sharks and the sun.

28. Unit Review! Dec 5, 2013 explain the relationship between sharks and the sun. **The sun provides the energy for the algae which supplies the energy for the food chain including the shark