1. ECOLOGY & HUMAN IMPACT ON THE ENVIRONMENT

2. NONLIVING PARTS OF THE ENVIRONMENT

3. ABIOTIC

4. AN ORGANISM THAT PRODUCES ITS OWN FOOD; THE SOURCE OF ENERGY FOR ALL OTHER LIVING THINGS ON EARTH

5. AUTOTROPH

6. THE VARIETY OF SPECIES IN AN AREA

7. BIODIVERSITY

8. ALL OF EARTH’S ECOSYSTEMS COLLECTIVELY, INCLUDING LAND, WATER AND AIR

9. BIOSPHERE

10. THE LIVING PARTS OF THE ENVIRONMENT

11. BIOTIC

12. AN ORGANISM THAT SURVIVES BY EATING ANIMALS

13. CARNIVORE

14. THE LARGEST POPULATION OF ANY SINGLE SPECIES THAT AN AREA CAN SUPPORT

15. CARRYING CAPACITY

16. A COMBINATION OF ALL THE DIFFERENT POPULATIONS THAT LIVE AND INTERACT IN THE SAME ENVIRONMENT

17. COMMUNITY

18. THE STRUGGLE BETWEEN ORGANISMS FOR THE SAME LIMITED RESOURCES IN IN A PARTICULAR AREA

19. COMPETITION

20. AN ORGANISM THAT OBTAINS ITS ENERGY FROM PRODUCERS

21. CONSUMER

22. AN ORGANISM, GENERALLY A BACTERIUM OR FUNGUS, THAT CONSUMES DEAD ORGANISMS AND ORGANIC WASTE

23. DECOMPOSER

24. THE STUDY OF HOW LIVING THINGS INTERACT WITH ONE ANOTHER AND WITH THEIR ENVIRONMENT

25. ECOLOGY

26. THE SPECIFIC ROLE PLAYED BY AN ORGANISM OR A POPULATION OF ORGANISMS IN THE ECOSYSTEM

27. ECOLOGICAL NICHE

28. THE PROCESS BY WHICH AN EXISTING COMMUNITY IS REPLACED BY ANOTHER COMMUNITY

29. ECOLOGICAL SUCCESSION

30. ALL THE LIVING AND NONLIVING THINGS THAT INTERACT IN A SPECIFIC AREA; A SUBDIVISION OF THE ENVIRONMENT

31. ECOSYSTEM

32. THE DIAGRAM SHOWING HOW FOOD ENERGY MOVES THROUGH THE ECOSYSTEM

33. ENERGY PYRAMID

34. EVERY LIVING AND NONLIVING THING THAT SURROUNDS AN ORGANISM

35. ENVIRONMENT

36. A REPRESENTATION THAT IDENTIFIES THE SPECIFIC FEEDING RELATIONSHIPS

37. FOOD CHAIN

38. A REPRESENTATION OF MANY INTERCONNECTED FOOD CHAINS THAT SHOWS THE FEEDING RELATIONSHIPS AMONG PRODUCERS, CONSUMERS, AND DECOMPOSERS

39. FOOD WEB

40. THE PLACE WHERE AN ANIMAL OR PLANT LIVES

41. HABITAT

42. AN ORGANISM THAT EATS ONLY PLANTS

43. HERBIVORE

44. ORGANISM THAT CANNOT MAKE ITS OWN FOOD; CONSUMERS

45. HETEROTROPH

46. THE ORGANISM IN A PARASITIC RELATIONSHIP THAT PROVIDES A HOMEAND/OR FOOD FOR THE PARASITE

47. HOST

48. ANY FACTOR IN THE ENVIRONMENT THAT LIMITS THE SIZE OF A POPULATION

49. LIMITING FACTORS

50. AN ORGANISM THAT SURVIVES BY LIVING AND FEEDING ON OTHER ORGANISMS

51. PARASITE

52. ALL THE INDIVIDUALS OF A SINGLE SPECIES THAT LIVE IN A SPECIFIC AREA

53. POPULATION

54. AN ANIMAL THAT HUNTS AND KILLS OTHER ANIMALS FOR FOOD

55. PREDATOR

56. AN ANIMAL THAT IS HUNTED AND KILLED BY PREDATORS

57. PREY

58. AN ANIMAL THAT IS HUNTED AND KILLED BY PREDATORS

59. PRODUCER

60. A CARNIVORE THAT FEEDS ON THE BODIES OF DEAD ORGANISMS

61. SCAVENGER

62. THE LARGEST POPULATION OF ANY SINGLE SPECIES THAT ANY AREA CAN SUPPORT

63. CARRYING CAPACITY

64. FOREST DESTRUCTION THAT RESULTS FROM HUMAN ACTIVITY

65. DEFORESTATION

66. THE MOVEMENT OF ENERGY THROUGH AN ECOSYSTEM

67. ENERGY FLOW

68. A FUEL, SUCH AS COAL AND GAS, THAT COMES FROM THE REMAINS OF ORGANISMS THAT LIVED MILLIONS OF YEARS AGO

69. FOSSIL FUEL

70. AN INCREASE IN EARTH’S AVERAGE SURFACE TEMPERATURE CAUSED BY AN INCREASE IN GREENHOUSE GASES

71. GLOBAL WARMING

72. THE PROCESS OF CONVERTING AN ECONOMY INTO ONE IN WHICH LARGE-SCALE MANUFACTURING IS THE PRIMARY ECONOMIC BASE

73. INDUSTRIALIZATION

74. THE MOVEMENT OF NITROGEN FROM THE ATMOSPHERE TO THE SOIL AND ORGANISMS AND THEN BACK TO THE ATMOSPHERE

75. NITROGEN CYCLE

76. THE PROCESS BY WHICH NITROGEN FORMS COMPOUNDS THAT CAN BE USED BY LIVING THINGS

77. NITROGEN FIXATION

78. ANY RESOURCE, SUCH AS FOSSIL FUELS AND MINERALS, THAT CANNOT BE REPLACED

79. NONRENEWABLE RESOURCE

80. AN ENERGY SOURCE THAT RESULTS FROM SPLITTING ATOMS

81. NUCLEAR FUEL

82. THE LAYER OF GAS IN THE UPPER ATMOSPHERE THAT PROTECTS EARTH FROM SOME OF THE SUN’S RADIATION

83. OZONE

84. A HARMFUL CHANGE IN THE CHEMICAL MAKEUP OF THE SOIL, WATER OR AIR

85. POLLUTION

86. EARTH’S RESOURCES, SUCH AS OUR FOOD SUPPLY AND SOLAR ENERGY, WHICH, GIVEN TIME, CAN BE REPLACED

87. RENEWABLE RESOURCE

88. ALL THE PRACTICAL SCIENTIFIC KNOWLEDGE THAT HAS BEEN USED TO MEET HUMAN NEEDS

89. TECHNOLOGY

90. THE PROCESS BY WHCH WATER CONTINUOUSLY MOVES FROM THE EARTHS SURFACE TO THE ATMOSPHERE AND BACK

91. WATER CYCLE