1. Chapter 13 Principles of Ecology
Created by Educational Technology Network

2. 10 20 30 40 50 Ecologists Study Relationships Energy in Ecosystems
Biotic and Abiotic Factors and Pyramids
Energy in Ecosystems
Food Chains and Food Webs
Cycling of Matter 10 20 30 40 50

3. Question
Name the study of the relationships among organisms and their environment

4. Answer 1 – 10
Ecology

5. Question
What are the two types of modeling used by ecologists?

6. Answer 1 – 20
Computer
Mathematical

7. Question
An ________________ includes all of the organisms as well as the climate, soil, water, rocks, and other nonliving things in a given area

8. Answer 1 – 30
ecosystem

9. Question
Name the three general methods used by ecologists to study organisms

10. Answer 1 – 40
Observation
Experimentation
Modeling

11. Question
Name the five different levels of organization studied by ecologists listed in order from most specific to broad

12. Answer 1 – 50
Organism
Population
Community
Ecosystem
Biome

13. Question
What ecology terms are used in place of LIVING and NON-LIVING?

14. Answer 2 – 10
Biotic
Abiotic

15. Question
What is the assortment, or variety, of living things in an ecosystem?

16. Answer 2 – 20
Biodiversity

17. Question
What is the name of a species that has an unusually large effect on its ecosystem?

18. Answer 2 – 30
Keystone Species

19. Question
What percent of the energy in a food chain is available to the next trophic level?

20. Answer 2 – 40
10%

21. Question
Name the three types of ecological pyramids used to model the distribution of energy and matter in an ecosystem

22. Answer 2 – 50
Energy
Biomass
Numbers

23. Question
Name the two processes by which producers create their own food

24. Answer 3 – 10
Photosynthesis
Chemosynthesis

25. Question
______________ are organisms that produce their own food. They are also known as ________________

26. Answer 3 – 20
Producers
Autotrophs

27. Question
_____________ are organisms that must consume their food and are also known as ___________

28. Answer 3 – 30
Consumers
Heterotrophs

29. Question
What two molecules are produced by the process of photosynthesis that are needed by humans?

30. Answer 3 – 40
C6H12O6 O2

31. Question
What gas does photosynthesis take out of the air?

32. Answer 3 – 50
CO2

33. Question
A ________________ is a sequence that links species by their feeding relationships

34. Answer 4 – 10
Food chain

35. Question
A ___________ is a model that shows the complex network of feeding relationships and the flow of energy within and sometimes beyond an ecosystem

36. Answer 4 – 20
Food Web

37. Question
________________ are the levels of nourishment in a food chain.

38. Answer 4 – 30
Trophic levels

39. Question 4 - 40 Name the following types of consumers in order:
Only eat plants _____________
Only eat animals _____________

40. Answer 4 – 40
Herbivore
Carnivore

41. Question 4 - 50 Name the following types of consumers in order:
Eat both plants and animals ________
Eat detritus ___________

42. Answer 4 – 50
Omnivore
Detritivore

43. Question
Name the circular pathway of water on earth from the atmosphere, to the surface, below ground, and back.

44. Answer 5 – 10
Hydrogeologic cycle

45. Question
______________ is the movement of a particular chemical through the biological and geological, or living and nonliving, parts of an ecosystem.

46. Answer 5 – 20
Biogeochemical cycle

47. Question
Name the process of certain types of bacteria converting gaseous nitrogen into ammonia.

48. Answer 5 – 30
Nitrogen fixation

49. Question
What are the two main processes that put carbon dioxide into the atmosphere?

50. Answer 5 – 40
Combustion
Respiration

51. Question
What is the name of the process by which water evaporates from the surface of plants?

52. Answer 5 – 50
Transpiration