2. Habitat and Niche Community Interactions Population Density and Distribution Population Growth Patterns Ecological Succession 10 20 30 40 50

3. Question 1 - 10 All of the biotic and abiotic factors in the area where an organism lives

4. Answer 1 – 10 Habitat

5. Question 1 - 20 All of the physical, chemical, and biological factors that a species needs to survive, stay healthy, and reproduce. (role of the organism)

6. Answer 1 – 20 Niche

7. Question 1 - 30 The principle that states when two species are competing for the same resources, one species will be better suited to the niche, and the other species will be pushed into another niche or become extinct

8. Answer 1 – 30 Competetive exclusion

9. Question 1 - 40 Species that occupy similar niches but live in different geographical regions

10. Answer 1 – 40 Ecological equivalents

11. Question 1 - 50 Two species that are able to divide the resources in a niche without competing are involved in __________________.

12. Answer 1 – 50 Niche partitioning

13. Question 2 - 10 The process by which one organism captures and feeds upon another organism

14. Answer 2 – 10 Predation

15. Question 2 - 20 A close ecological relationship between two or more organisms of different species that live in direct contact with one another

16. Answer 2 – 20 Symbiosis

17. Question 2 - 30 The type of symbiotic relationship in which both organisms benefit from one another

18. Answer 2 – 30 Mutualism

19. Question 2 - 40 The type of symbiotic relationship in which one organism benefits and the other is unaffected

20. Answer 2 – 40 Commensalism

21. Question 2 - 50 What is the name for a parasite that lives in the tissues and organs of the host and feeds on the nutrients ingested by their host?

22. Answer 2 – 50 Endoparasite

23. Question 3 - 10 The measurement of the number of individuals living in a defined space

24. Answer 3 – 10 Population Density

25. Question 3 - 20 The way in which individuals of a population are spread in an area or a volume

26. Answer 3 – 20 Population dispersion

27. Question 3 - 30 The pattern of dispersion in which individuals may live close together in groups in order to facilitate mating, gain protection, or access to food resources

28. Answer 3 – 30 Clumped dispersion

29. Question 3 - 40 A generalized diagram showing the number of surviving members over time from a measured set of births

30. Answer 3 – 40 Survivorship curve

31. Question 3 - 50 Give an example of each of the three types of survivorship curves Type I: ____________ Type II: ___________ Type III: ___________

32. Answer 3 – 50 Type I: humans, large mammals, etc. Type II: birds, reptiles, etc. Type III: fish, amphibians, plants, etc.

33. Question 4 - 10 The growth pattern that occurs when a population size increases dramatically over a period of time

34. Answer 4 – 10 Exponential growth

35. Question 4 - 20 Name the 4 factors that need to be considered when determining the rate of population growth

36. Answer 4 – 20 Immigration Emmigration Natality Mortality

37. Question 4 - 30 The growth pattern in which a population begins with a period of slow growth followed by a brief period of exponential growth followed by leveling off at the carrying capacity

38. Answer 4 – 30 Logistic growth

39. Question 4 - 40 A dramatic decline in the size of a population over a short period of time

40. Answer 4 – 40 Population crash

41. Question 4 - 50 Limiting factors that are affected by the number of individuals in a given area

42. Answer 4 – 50 Density-dependent limiting factors

43. Question 5 - 10 The sequence of biotic changes that regenerate a damaged community or create a community in a previously uninhabited area

44. Answer 5 – 10 Succession

45. Question 5 - 20 The establishment and development of an ecosystem in an area that was previously uninhabited

46. Answer 5 – 20 Primary succession

47. Question 5 - 30 The first organisms that live in a previously uninhabited area such as lichens and mosses

48. Answer 5 – 30 Pioneer species

49. Question 5 - 40 The reestablishment of a damaged ecosystem in an area where the soil was left intact

50. Answer 5 – 40 Secondary succession

51. Question 5 - 50 What is the key factor that allows for secondary succession to occur much more rapidly?

52. Answer 5 – 50 Soil