1. a- or an-
not; without

2. Atypical
MEANING: Not typical

3. Asexual Not sexual

4. auto-
self

5. Autograph self written

6. Autotroph can feed itself

7. bi- or di-
two

8. Bicycle 2 wheels

9. Binary fission one organism divides into two organisms

10. bio-
life

11. Biography a story of a person’s life

12. Biology the study of life

13. cardio-
heart

14. Cardiogram written printout of the heart

15. Cardiac Arrest heart stops beating

16. Cardiovascular Exercise activity that raises the heart rate

18. chloro-
green (color)

19. Chlorine a greenish yellowish poisonous gas

20. Chlorophyll pigment which gives most plants a green color

21. con-
together

22. Connect to join together

23. Conjoined twins Twins that are joined together

24. cyto-
cell

25. Cytology the study of cells

26. Cytoplasm most of the protoplasm of a cell

27. ecto- or exo-
outside

28. exotic outside of this part of the world

29. Exoskeleton skeleton on the outside

30. Ectotherm gets its heat from outside

31. endo-
inside

32. endorphins chemicals produced inside the body

33. Endoplasmic reticulum a tiny organ inside the cytoplasm

34. hetero-
other or different

35. Heterosexual Attracted to the opposite/different sex

36. Heterozygous having two different genes

37. homo- or homeo-
same or similar

38. Homogenized milk milk that is all the same (with no layers)

39. Homeostasis keeping your internal systems the same

40. hypo-
under or below

41. Hypodermic needle injects below the skin

42. Hypothermia body temperature below normal

43. hyper-
over or above

44. Hyperactive more active than usual

45. Hyperthermia body temperature is above normal

46. inter- or intra-
within or between

47. Interstate highway highway that goes between states

48. interbreed to breed within your species

49. macro-
large

50. macrocosm large whole universe

51. macrophage large white blood cell

52. micro-
small

53. microchip small computer chip

54. microscope a tool used to see very small organisms

55. mono- or uni-
one

56. Unicorn animal with one horn

57. UNICELLULAR: organism made of only one cell

58. Monogamy having one mate for life

59. multi-
many

60. MULTICOLORED: having many colors

61. MULTICELLULAR: made of many cells

62. photo-
light

63. PHOTOGRAPH: picture taken using light

64. PHOTOSYNTHESIS: Making food from light

65. pro-
before or first

66. Prologue before the book begins

67. Prokaryote before having a nucleus

68. sub-
below

69. Submarine ship that travels underwater

70. Subatomic the level below the whole atom

71. hydro-
water

72. Hydroponics growing plants in water rather than soil

73. Hydrophobic having a fear/aversion to water

74. thermo-
heat

75. Thermometer instrument that measures heat

76. Thermodynamics the relationship between heat and mechanical work