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
   19991
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
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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
    10900
29. Plasma Membrane-Gateway to the Cell
    10892
30. Acid, bases and salts
    10439
31. Development
    10337
32. Mirrors and Lenses
    10279
33. Structure of the Atom
    10016
34. Balanced forces
    9992
35. Ancient Civilizations
    9905
36. Resource Acquisition and Transport in Vascular Plants
    9818
37. Mass Spectrometry
    9815
38. Pronouns
    9793
39. Nouns
    9764
40. Support and transport in plants
    9467
41. Forests
    9444
42. Atomic Structure
    9391
43. Newton’s third law of motion
    9041
44. Cell Types and Cell Structure
    9030
45. Animal Nutrition
    8859
46. Transplantation Immunology
    8726
47. Cellular respiration
    8572
48. Sensory and Motor Mechanisms
    8506
49. Growing Plants
    8470
50. Plant Responses to Internal and External Signals
    8382
51. Electrical Circuits
    8315
52. Lab Equipment
    8118
53. Neurons, Synapses, and Signaling
    8048
54. Prepositions
    8024
55. Viruses, Viroids, and Prions
    7969
56. Of Mice and Men
    7922
57. A Tour of the Cell
    7909
58. Basic Structure of a Cell
    7722
59. Real time PCR and it's functions in diagnosis
    7699
60. Covalent Bonding (Molecules)
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61. Cellular Division
    7594
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. To Kill a Mockingbird
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66. Sound
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67. Satellite Orbits and Uses NIS
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68. Blood Type Genetics
    7073
69. The Immune System
    6991
70. Well logging The Bore Hole
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71. Molecules and Ions
    6963
72. Membrane Structure and Function
    6907
73. Animal Reproduction
    6868
74. The Chemistry of Acids and Bases
    6819
75. Angiosperm Reproduction and Biotechnology
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76. Mendel and the Gene Idea
    6738
77. Plant Diversity
    6719
78. Cell Communication
    6681
79. Rocks
    6657
80. Balancing Chemical Equations
    6558
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
    6351
86. An Introduction to Metabolism
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87. Empirical Formula
    6252
88. Electron Quantum Numbers
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89. The Structure and Function of Large Biological Molecules
    6122
90. Translation. Protein from RNA
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91. Neurons
    6104
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)