1. 1.____________________= amount of energy that is available at each trophic level in an ecological pyramid 10%

2. 2.____________________= nonliving things Abiotic

3. 3.____________________= shows how chemicals move and concentrate in plant and animal tissues as they move up the food chain Biological Magnification

4. 4.____________________= geographical region containing several ecosystems that have the same climate and dominant communities (ex.Desert) Biome

5. 5.____________________= part of Earth where life exists Biosphere

6. 6.____________________= living things Biotic

7. 7.___________________ = cycles of energy and matter in the biosphere (water, nitrogen, carbon ) Biogeochemical cycles

8. 8.____________________= an animal that eats only meat EX: wolf, lion, alligator Carnivore

9. 9.____________________= all populations of organisms living in a given area (plants AND animals) Community

10. 10.___________________= name of the chemical that was banned in the U.S. due to egg-shell thinning in eagles and other birds of prey DDT

11. 11.___________________ = all living and nonliving elements in a given area Ecosystem

12. 12.___________________= an organism that breaks down material EX: bacteria, worm, protists Decomposers

13. 13.___________________= shows how energy is transferred through trophic levels Ecological Pyramid

14. 14.___________________ = shows the amount of amount of mass at each trophic level Biomass Pyramid

15. 15.____________________= the scientific study of the INTERACTIONS between organisms and Environment Ecology

16. 16.____________________= series of steps in which organisms transfer energy by eating and being eaten Food Chain

17. 17.___________________ = complex feeding relationships Food Web

18. 18.___________________= an animal that eats only plants EX: deer, cow, koala bear Herbivore

19. 19.___________________ = another name for a consumer Hetertroph

20. 20.___________________ = another name for producer Autotroph

21. 21.___________________ = an animal that eats both plants and animals EX: bears, turtle, humans Omnivore

22. 22.___________________ = energy flows through an ecosystem this way One direction

23. 23.___________________ = any individual living creature Organism

24. 24.___________________ = collection of individuals of the same species in a given area whose members can breed with one another (all the Bison in Yellowstone) Population

25. 25.____________________ = make their own food from sunlight EX: plants Producers

26. 26.____________________= an animal that eats CARRION (dead animals) EX: vulture, hyena Scavenger

27. 27.____________________ = source of energy for all living things Sun

28. 28.____________________= steps in a food web or food chain (feeding levels) Trophic Levels

29. 29.____________________= sum total of the variety of organisms in the biosphere Biodiversity

30. 30.____________________= occurs when organisms attempt to use resources at the same place at the same time Competition

31. 31.____________________= the relationship between two closely related species (mutualism, commensalisms, parasitism) Symbiosis

32. 32.____________________= the interaction when one organism captures and feeds on another Predation

33. 33.____________________=shows predictable changes of a community over time Ecological Succession

34. 34.____________________= the number of individuals at which the environment can support Carrying Capacity

35. 35.____________________= factors that cause a population to decline Limiting Factors

36. 36.___________________= factors that limit the population growth only when the density reaches a certain level (predation, parasitism, disease, competition) Density-Dependent

37. 37.___________________= factors that affect all populations regardless of size (weather, natural disasters, human activities) Density-Independent

38. 38.___________________= a result of increased greenhouse gases Global Warming

39. 39.___________________= resources cannot be replenished by natural processes (ex. fossil fuels) Nonrenewable Resources

40. 40.___________________= resources can be regenerated and are replaceable Renewable Resources

41. 41.___________________= in danger of becoming extinct Endangered Species

42. 42.___________________= when individuals of a population grow at a constant rate (J-shaped curve) Exponential Growth

43. 43.___________________= occurs when a population slows or stops following a period of exponential growth (S-shaped curve) Logistic Growth

44. 44.__________________ = process that uses sunlight to convert water and carbon dioxide into oxygen and sugars. Photosynthesis

45. 45.__________________ = organelle in leaf cell where photosynthesis takes place. Chloroplast

46. 46.__________________= organelle in a cell where cellular respiration takes place. Mitochondria

47. 47.__________________= process that releases energy by breaking down food molecules. Cellular Respiration

48. 48.__________________= process that occurs with oxygen. Aerobic

49. 49.__________________= process that occurs without oxygen. Anaerobic

50. 50.__________________= Pigment in plant that captures sunlight Chlorophyll

51. 51___________________ = Change over time Evolution

52. 52.__________________ = Differences among individuals within a species Natural Variation

53. 53.__________________ =The preserved remains of an ancient organism Fossil

54. 54.__________________ = Survival of the fittest Fitness

55. 55.__________________ = All species are derived from common ancestors Common Decent

56. 56.__________________ = Structures that develop from the same embryonic tissues, but different mature forms Homologous Structure

57. 57.__________________ = The ability of an individual to survive and reproduce in a specific environment Natural Selection

58. 58.__________________ = Organs with little or no function Vestigial Organ

59. 59.__________________ = Competition for food, space and other resources among members of a species Struggle for existence

60. 60.__________________ = Inherited characteristic that increases an organism’s chance of survival Adaptation

61. 61.__________________ = Variety of life Biodiversity

62. 62__________________ = When humans breed organisms for a desired trait Artificial Selection

63. 63.__________________= Classification of living organisms Taxonomy

64. 64.__________________ = Scientific naming system where organisms have two names. Binomial Nomenclature

65. 65.__________________ = movement of organisms into a given area. Immigration

66. 66.__________________ = movement of organisms out of a given area. Emigration

67. 67.__________________ = 0 2 + C 6 H 12 0 6 --  H 2 0 +C0 2 + ATP Cellular Respiration

68. 68.__________________ = C0 2 + H 2 0 + Sunlight--  0 2 + C 6 H 12 0 6 Photosynthesis

69. 69. ____________________________ = Domain of a unicellular organism with prokaryotic cells that have an unorganized nucleus and live in areas high in salt or heat. Archea

70. 70.__________________ = Domain of a mulitcelluar organism with eukaryotic cells with an organized nucleus. Eukarya

71. 71.__________________ = Domain of a unicellular organism with prokaryotic cells with an unorganized nucleus. Bacteria

72. 72.__________________ = symbiotic relationship in which both species benefit.(bee and flower) Mutualism

73. 73.__________________ = symbiotic relationship in which one species is harmed and the other benefits. (Tapeworm and pig) Parasitism

74. 74.____________________ = symbiotic relationship in which one species benefits but the other is neither helped nor harmed (barnacle and whale) Commensalism

75. 75_______________ Tools scientist use to identify organisms. Dichotomous Key

76. 76. __________________ Molecule that stores energy in a cell ATP (Adenine Triphosphate)

77. 77. ________________ An educated guess Hypothesis

78. 78. _______________ Testable explanation of a natural phenomenon. Theory

79. 79. ______________ Felix concolor Scientific Name

80. 80. ______________ Mountain Lion, Cougar, Puma Common Name