Top 100 presentations

1. Continuous Verb Tenses
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2. Support and transport in plants
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3. Anyong Tubig Anyong Lupa sa Asya
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4. Elements compounds and mixtures
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5. Chromosome
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6. Simple Verb Tenses
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7. Atomic Structure
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8. Balancing Chemical Equations. Balancing redox equations
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9. Periodic Behavior
   19993
10. Newton’s laws of motion
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11. Periodic Trends
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12. Adverbs
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13. Percent Composition, Empirical and Molecular Formulas
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14. Animal Farm
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15. Bonding, Molecular Shape & Structure
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16. Circulation and Gas Exchange
    13625
17. MakingFood
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18. DNA - An overview
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19. Atomic Structure and Periodic Trends
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20. Fungi
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21. Volumetric
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22. Atomic Structure and Periodicity
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23. Feminism- Cure or Curse
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24. Hormones and the Endocrine System
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25. Animal Development
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26. Derivation Applications of Bernoulli Principal
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27. Osmoregulation and Excretion
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28. Plant Structure, Growth, and Development
    10904
29. Plasma Membrane-Gateway to the Cell
    10896
30. Acid, bases and salts
    10442
31. Development
    10342
32. Mirrors and Lenses
    10283
33. Structure of the Atom
    10019
34. Balanced forces
    9995
35. Ancient Civilizations
    9910
36. Resource Acquisition and Transport in Vascular Plants
    9827
37. Mass Spectrometry
    9817
38. Pronouns
    9796
39. Nouns
    9766
40. Support and transport in plants
    9472
41. Forests
    9446
42. Atomic Structure
    9393
43. Newton’s third law of motion
    9044
44. Cell Types and Cell Structure
    9031
45. Animal Nutrition
    8862
46. Transplantation Immunology
    8731
47. Cellular respiration
    8574
48. Sensory and Motor Mechanisms
    8509
49. Growing Plants
    8472
50. Plant Responses to Internal and External Signals
    8386
51. Electrical Circuits
    8322
52. Lab Equipment
    8121
53. Neurons, Synapses, and Signaling
    8052
54. Prepositions
    8024
55. Viruses, Viroids, and Prions
    7974
56. Of Mice and Men
    7923
57. A Tour of the Cell
    7918
58. Basic Structure of a Cell
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59. Real time PCR and it's functions in diagnosis
    7702
60. Covalent Bonding (Molecules)
    7636
61. Cellular Division
    7601
62. Plant structure adaptations and responses
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63. Ionic Bonding
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64. Mendelian Genetics
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65. Sound
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66. To Kill a Mockingbird
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67. Satellite Orbits and Uses NIS
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68. Blood Type Genetics
    7076
69. The Immune System
    6993
70. Well logging The Bore Hole
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71. Molecules and Ions
    6965
72. Membrane Structure and Function
    6913
73. Animal Reproduction
    6872
74. The Chemistry of Acids and Bases
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75. Angiosperm Reproduction and Biotechnology
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76. Mendel and the Gene Idea
    6749
77. Plant Diversity
    6722
78. Cell Communication
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79. Rocks
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80. Balancing Chemical Equations
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81. Rate Laws
    6420
82. Introduction to Oscillations and Simple Harmonic Motion
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83. Drama
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84. Hybridization of Orbitals
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85. The Building Blocks of Matter Atoms
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86. An Introduction to Metabolism
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87. Empirical Formula
    6254
88. Electron Quantum Numbers
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89. The Structure and Function of Large Biological Molecules
    6126
90. Translation. Protein from RNA
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91. Neurons
    6107
92. Photosynthesis
    6059
93. The Mole
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94. Cell Membrane + Tissues & Organs Definitions
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95. Earthquakes
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96. Karyotypes
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97. ADP, ATP and Cellular Respiration
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98. Population Ecology
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99. Classical greek philosophy
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100. Endocrine System
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Research and Development, Experimental aerospace engineering center in Serbia (Space Technologies)