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
   20641
7. Balancing Chemical Equations. Balancing redox equations
   19862
8. Atomic Structure
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9. Periodic Behavior
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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
    15578
15. Bonding, Molecular Shape & Structure
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16. MakingFood
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17. Circulation and Gas Exchange
    13104
18. Fungi
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19. DNA - An overview
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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
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24. Hormones and the Endocrine System
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25. Derivation Applications of Bernoulli Principal
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26. Animal Development
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27. Osmoregulation and Excretion
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28. Plasma Membrane-Gateway to the Cell
    10629
29. Plant Structure, Growth, and Development
    10456
30. Acid, bases and salts
    9995
31. Development
    9960
32. Mirrors and Lenses
    9887
33. Structure of the Atom
    9772
34. Balanced forces
    9763
35. Pronouns
    9656
36. Mass Spectrometry
    9654
37. Nouns
    9559
38. Ancient Civilizations
    9523
39. Forests
    9245
40. Support and transport in plants
    9185
41. Atomic Structure
    9158
42. Resource Acquisition and Transport in Vascular Plants
    9158
43. Cell Types and Cell Structure
    8904
44. Newton’s third law of motion
    8779
45. Animal Nutrition
    8466
46. Transplantation Immunology
    8437
47. Cellular respiration
    8361
48. Growing Plants
    8165
49. Electrical Circuits
    8119
50. Sensory and Motor Mechanisms
    8041
51. Prepositions
    7897
52. Lab Equipment
    7874
53. Plant Responses to Internal and External Signals
    7820
54. Viruses, Viroids, and Prions
    7726
55. Neurons, Synapses, and Signaling
    7657
56. Of Mice and Men
    7656
57. Basic Structure of a Cell
    7533
58. Covalent Bonding (Molecules)
    7480
59. Plant structure adaptations and responses
    7465
60. Real time PCR and it's functions in diagnosis
    7445
61. A Tour of the Cell
    7433
62. Ionic Bonding
    7360
63. Cellular Division
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64. To Kill a Mockingbird
    6924
65. Mendelian Genetics
    6918
66. Blood Type Genetics
    6902
67. Satellite Orbits and Uses NIS
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68. Molecules and Ions
    6827
69. Well logging The Bore Hole
    6762
70. The Immune System
    6601
71. Membrane Structure and Function
    6522
72. Sound
    6503
73. Animal Reproduction
    6491
74. Rocks
    6480
75. The Chemistry of Acids and Bases
    6474
76. Angiosperm Reproduction and Biotechnology
    6425
77. Balancing Chemical Equations
    6386
78. Plant Diversity
    6365
79. Cell Communication
    6282
80. Rate Laws
    6248
81. Mendel and the Gene Idea
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82. Drama
    6221
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
    6102
86. Empirical Formula
    6101
87. Electron Quantum Numbers
    6063
88. Translation. Protein from RNA
    6035
89. Neurons
    5933
90. An Introduction to Metabolism
    5907
91. The Mole
    5831
92. The Structure and Function of Large Biological Molecules
    5771
93. Cell Membrane + Tissues & Organs Definitions
    5770
94. Karyotypes
    5759
95. ADP, ATP and Cellular Respiration
    5741
96. Earthquakes
    5718
97. Endocrine System
    5712
98. Photosynthesis
    5578
99. Conjunction
    5536
100. Classical greek philosophy
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Research and Development, Experimental aerospace engineering center in Serbia (Space Technologies)