1. carbon dioxide
oxygen
Life Boot Camp
5.9D
Identify the significance of the carbon dioxide-oxygen cycle to the survival of plants and animals.

2. STAAR 2013 #42; RC 4; Supporting 1
STAAR 2013 #42; RC 4; Supporting 1. Many types of plants grow in a forest ecosystem. How do plants affect the air that forest animals breathe? F. Plants use oxygen from the air to make food. G. Plants release pollution into the air. H. Plants release energy from the sun into the air. J. Plants take in carbon dioxide and release oxygen into the air.

3. STAAR 2013 #42; RC 4; Supporting 1
STAAR 2013 #42; RC 4; Supporting 1. Many types of plants grow in a forest ecosystem. How do plants affect the air that forest animals breathe? F. Plants use oxygen from the air to make food. G. Plants release pollution into the air. H. Plants release energy from the sun into the air. J. Plants take in carbon dioxide and release oxygen into the air.

4. TAKS 2003—#19 (56%) 2. Which gas in the air would increase if a large number of trees were cut down? A Carbon dioxide B Nitrogen C Oxygen D Water vapor

5. TAKS 2003—#19 (56%) 2. Which gas in the air would increase if a large number of trees were cut down? A Carbon dioxide B Nitrogen C Oxygen D Water vapor

6. 3. Which process is illustrated in the following system
3. Which process is illustrated in the following system?   Food Production in Plants A The Nitrogen Cycle B Photosynthesis C Phototropism D The Water Cycle
Energy (sunlight)
Oxygen
Carbon Dioxide
Water

7. 3. Which process is illustrated in the following system
3. Which process is illustrated in the following system?   Food Production in Plants A The Nitrogen Cycle B Photosynthesis C Phototropism D The Water Cycle
Energy (sunlight)
Oxygen
Carbon Dioxide
Water

8. 4. During which of the following processes does a plant use sunlight to produce its own food? A Migration B Hibernation C Metamorphosis D Photosynthesis

9. 4. During which of the following processes does a plant use sunlight to produce its own food? A Migration B Hibernation C Metamorphosis D Photosynthesis

10. 5. Which of the following gases do plants use in photosynthesis. A
5. Which of the following gases do plants use in photosynthesis? A Hydrogen B Oxygen C Carbon dioxide D Carbon monoxide

11. 5. Which of the following gases do plants use in photosynthesis. A
5. Which of the following gases do plants use in photosynthesis? A Hydrogen B Oxygen C Carbon dioxide D Carbon monoxide

12. 6. Which gas is given off by plants during the carbon dioxide/oxygen cycle? A Hydrogen B Nitrogen C Oxygen D Helium

13. 6. Which gas is given off by plants during the carbon dioxide/oxygen cycle? A Hydrogen B Nitrogen C Oxygen D Helium

14. 7. What effect might large forest fires have on the air in that general area? A The levels of gases in the air increase. B Carbon dioxide levels increase while oxygen levels decrease. C Carbon dioxide levels decrease while oxygen levels increase. D Levels of oxygen and carbon dioxide remain the same.

15. 7. What effect might large forest fires have on the air in that general area? A The levels of gases in the air increase. B Carbon dioxide levels increase while oxygen levels decrease. C Carbon dioxide levels decrease while oxygen levels increase. D Levels of oxygen and carbon dioxide remain the same.

16. 8. Plants use different compounds to complete the process of photosynthesis. What gas do plants give off as a waste product during photosynthesis? A Carbon dioxide B Nitrogen C Oxygen D Water

17. 8. Plants use different compounds to complete the process of photosynthesis. What gas do plants give off as a waste product during photosynthesis? A Carbon dioxide B Nitrogen C Oxygen D Water

18. 9. An increase in the average level of carbon dioxide in the atmosphere is most likely caused by an increase in the — A extinctions of animals B plant life on Earth C number of large forest fires D number of solar-powered homes

19. 9. An increase in the average level of carbon dioxide in the atmosphere is most likely caused by an increase in the — A extinctions of animals B plant life on Earth C number of large forest fires D number of solar-powered homes

20. 10. Plants use sunlight and take in carbon dioxide from the air and water from the environment to make food. In this process, they release oxygen back into the environment. How is this important to the survival of other living things? A Plants use this oxygen to make water. B People need this oxygen to make electricity. C Animals use oxygen for food. D Living things need oxygen for respiration.

21. 10. Plants use sunlight and take in carbon dioxide from the air and water from the environment to make food. In this process, they release oxygen back into the environment. How is this important to the survival of other living things? A Plants use this oxygen to make water. B People need this oxygen to make electricity. C Animals use oxygen for food. D Living things need oxygen for respiration.

22. 11. Green plants are important to animals because the plants— A
11. Green plants are important to animals because the plants— A consume food and give off oxygen B consume food and give off carbon dioxide C produce food and give off oxygen D produce food and give off carbon dioxide

23. 11. Green plants are important to animals because the plants— A
11. Green plants are important to animals because the plants— A consume food and give off oxygen B consume food and give off carbon dioxide C produce food and give off oxygen D produce food and give off carbon dioxide

24. 12. In an ecosystem, which group of organisms puts a large amount of oxygen into the air? A Animals B Bacteria C Fungi D Plants

25. 12. In an ecosystem, which group of organisms puts a large amount of oxygen into the air? A Animals B Bacteria C Fungi D Plants

26. 13. In a forest, how do decomposers help other organisms survive. A
13. In a forest, how do decomposers help other organisms survive? A They release oxygen into the air that animals breathe. B They put nutrients into the soil that plants use to grow. C They provide shelter in forests where animals can hide. D They use sunlight to make food for plants and animals.

27. 13. In a forest, how do decomposers help other organisms survive. A
13. In a forest, how do decomposers help other organisms survive? A They release oxygen into the air that animals breathe. B They put nutrients into the soil that plants use to grow. C They provide shelter in forests where animals can hide. D They use sunlight to make food for plants and animals.

28. 14. Which gas is given off by plants in the carbon cycle? A Hydrogen B Nitrogen C Oxygen D Helium

29. 14. Which gas is given off by plants in the carbon cycle? A Hydrogen B Nitrogen C Oxygen D Helium

30. 15. Where do the consumers in the carbon cycle get the carbon compound that they need for survival? A From decomposers B From eating plants C From the soil D From carbon dioxide in the air

31. 15. Where do the consumers in the carbon cycle get the carbon compound that they need for survival? A From decomposers B From eating plants C From the soil D From carbon dioxide in the air

32. 16. Carbon dioxide is used by— A. animals during respiration B
16. Carbon dioxide is used by— A animals during respiration B animals, plants, and fungi during respiration C plants during photosynthesis D plants and fungi during transpiration

33. 16. Carbon dioxide is used by— A. animals during respiration B
16. Carbon dioxide is used by— A animals during respiration B animals, plants, and fungi during respiration C plants during photosynthesis D plants and fungi during transpiration

34. 18. Living plants and fish are shown in the aquarium
18. Living plants and fish are shown in the aquarium. These plants are providing the fish with— A water B light C oxygen D carbon dioxide

35. 18. Living plants and fish are shown in the aquarium
18. Living plants and fish are shown in the aquarium. These plants are providing the fish with— A water B light C oxygen D carbon dioxide

36. 19. Plants take in carbon dioxide gas and use it to make sugars
19. Plants take in carbon dioxide gas and use it to make sugars. Through this process, they release oxygen, which animals need. Which of the following activities could increase the amount of oxygen released into the air? A Replacing every tree that is cut down with two new trees B Clearing plants to build parking lots, homes, and malls C Supporting population growth in plant-eating animals D Setting stronger air pollution standards.

37. 19. Plants take in carbon dioxide gas and use it to make sugars
19. Plants take in carbon dioxide gas and use it to make sugars. Through this process, they release oxygen, which animals need. Which of the following activities could increase the amount of oxygen released into the air? A Replacing every tree that is cut down with two new trees B Clearing plants to build parking lots, homes, and malls C Supporting population growth in plant-eating animals D Setting stronger air pollution standards.

38. 20. Which part of the carbon cycle is responsible for providing food to eat and oxygen to breathe for animals? A Evaporation B Migration C Photosynthesis D Respiration

39. 20. Which part of the carbon cycle is responsible for providing food to eat and oxygen to breathe for animals? A Evaporation B Migration C Photosynthesis D Respiration

40. 21. The picture illustrates the process by which plants use sunlight, water, and carbon dioxide to make sugar. Oxygen and water are given off in the process as waste products. The process by which plants make their own food is called— A transpiration B osmosis C photosynthesis D respiration

41. 21. The picture illustrates the process by which plants use sunlight, water, and carbon dioxide to make sugar. Oxygen and water are given off in the process as waste products. The process by which plants make their own food is called— A transpiration B osmosis C photosynthesis D respiration

42. 22. What do plants give off as a waste product during photosynthesis? A Carbon dioxide B Nitrogen C Oxygen D Water

43. 22. What do plants give off as a waste product during photosynthesis? A Carbon dioxide B Nitrogen C Oxygen D Water

44. 23. In the picture above, what gas is being released by the plant into the test tube? A Carbon dioxide B Hydrogen C Oxygen D Nitrogen

45. 23. In the picture above, what gas is being released by the plant into the test tube? A Carbon dioxide B Hydrogen C Oxygen D Nitrogen

46. 24. In the diagram above, what is represented by the Z. A
24. In the diagram above, what is represented by the Z? A Carbon Dioxide B Water C Minerals D Oxygen

47. 24. In the diagram above, what is represented by the Z. A
24. In the diagram above, what is represented by the Z? A Carbon Dioxide B Water C Minerals D Oxygen