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
   20683
7. Balancing Chemical Equations. Balancing redox equations
   19937
8. Atomic Structure
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9. Periodic Behavior
   19765
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. MakingFood
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17. Circulation and Gas Exchange
    13210
18. DNA - An overview
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19. Fungi
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20. Atomic Structure and Periodic Trends
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21. Volumetric
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22. Feminism- Cure or Curse
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23. Atomic Structure and Periodicity
    12340
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. Plasma Membrane-Gateway to the Cell
    10668
29. Plant Structure, Growth, and Development
    10508
30. Acid, bases and salts
    10069
31. Development
    10031
32. Mirrors and Lenses
    9992
33. Structure of the Atom
    9830
34. Balanced forces
    9797
35. Mass Spectrometry
    9678
36. Pronouns
    9676
37. Ancient Civilizations
    9638
38. Nouns
    9590
39. Forests
    9280
40. Resource Acquisition and Transport in Vascular Plants
    9257
41. Support and transport in plants
    9225
42. Atomic Structure
    9199
43. Cell Types and Cell Structure
    8919
44. Newton’s third law of motion
    8811
45. Animal Nutrition
    8547
46. Transplantation Immunology
    8484
47. Cellular respiration
    8403
48. Growing Plants
    8214
49. Electrical Circuits
    8149
50. Sensory and Motor Mechanisms
    8138
51. Lab Equipment
    7919
52. Prepositions
    7912
53. Plant Responses to Internal and External Signals
    7900
54. Viruses, Viroids, and Prions
    7772
55. Neurons, Synapses, and Signaling
    7719
56. Of Mice and Men
    7698
57. Basic Structure of a Cell
    7557
58. A Tour of the Cell
    7509
59. Covalent Bonding (Molecules)
    7508
60. Real time PCR and it's functions in diagnosis
    7496
61. Plant structure adaptations and responses
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62. Ionic Bonding
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63. Cellular Division
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64. To Kill a Mockingbird
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65. Mendelian Genetics
    6960
66. Blood Type Genetics
    6927
67. Satellite Orbits and Uses NIS
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68. Molecules and Ions
    6849
69. Well logging The Bore Hole
    6793
70. The Immune System
    6657
71. Sound
    6622
72. Membrane Structure and Function
    6578
73. Animal Reproduction
    6546
74. Rocks
    6522
75. The Chemistry of Acids and Bases
    6512
76. Angiosperm Reproduction and Biotechnology
    6491
77. Plant Diversity
    6445
78. Balancing Chemical Equations
    6405
79. Mendel and the Gene Idea
    6349
80. Cell Communication
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81. Rate Laws
    6277
82. Drama
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83. Hybridization of Orbitals
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84. Introduction to Oscillations and Simple Harmonic Motion
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85. The Building Blocks of Matter Atoms
    6140
86. Empirical Formula
    6128
87. Electron Quantum Numbers
    6088
88. Translation. Protein from RNA
    6049
89. An Introduction to Metabolism
    5964
90. Neurons
    5956
91. The Mole
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92. The Structure and Function of Large Biological Molecules
    5808
93. Cell Membrane + Tissues & Organs Definitions
    5800
94. Karyotypes
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95. ADP, ATP and Cellular Respiration
    5755
96. Earthquakes
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97. Endocrine System
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98. Photosynthesis
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99. Classical greek philosophy
    5562
100. Conjunction
     5559

Research and Development, Experimental aerospace engineering center in Serbia (Space Technologies)