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
   20880
7. Atomic Structure
   20425
8. Balancing Chemical Equations. Balancing redox equations
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9. Periodic Behavior
   19988
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
    14869
16. Circulation and Gas Exchange
    13620
17. MakingFood
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18. DNA - An overview
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19. Atomic Structure and Periodic Trends
    13072
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
    12602
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
    10895
29. Plasma Membrane-Gateway to the Cell
    10888
30. Acid, bases and salts
    10438
31. Development
    10334
32. Mirrors and Lenses
    10279
33. Structure of the Atom
    10014
34. Balanced forces
    9992
35. Ancient Civilizations
    9900
36. Mass Spectrometry
    9813
37. Resource Acquisition and Transport in Vascular Plants
    9810
38. Pronouns
    9793
39. Nouns
    9764
40. Support and transport in plants
    9464
41. Forests
    9443
42. Atomic Structure
    9390
43. Newton’s third law of motion
    9038
44. Cell Types and Cell Structure
    9029
45. Animal Nutrition
    8854
46. Transplantation Immunology
    8720
47. Cellular respiration
    8568
48. Sensory and Motor Mechanisms
    8504
49. Growing Plants
    8467
50. Plant Responses to Internal and External Signals
    8377
51. Electrical Circuits
    8315
52. Lab Equipment
    8118
53. Neurons, Synapses, and Signaling
    8046
54. Prepositions
    8022
55. Viruses, Viroids, and Prions
    7966
56. Of Mice and Men
    7920
57. A Tour of the Cell
    7904
58. Basic Structure of a Cell
    7722
59. Real time PCR and it's functions in diagnosis
    7698
60. Covalent Bonding (Molecules)
    7633
61. Cellular Division
    7590
62. Plant structure adaptations and responses
    7587
63. Ionic Bonding
    7495
64. Mendelian Genetics
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65. To Kill a Mockingbird
    7139
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
    6986
70. Well logging The Bore Hole
    6980
71. Molecules and Ions
    6963
72. Membrane Structure and Function
    6905
73. Animal Reproduction
    6865
74. The Chemistry of Acids and Bases
    6817
75. Angiosperm Reproduction and Biotechnology
    6811
76. Mendel and the Gene Idea
    6736
77. Plant Diversity
    6712
78. Cell Communication
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79. Rocks
    6654
80. Balancing Chemical Equations
    6557
81. Rate Laws
    6417
82. Introduction to Oscillations and Simple Harmonic Motion
    6405
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
    6291
87. Empirical Formula
    6251
88. Electron Quantum Numbers
    6227
89. The Structure and Function of Large Biological Molecules
    6117
90. Translation. Protein from RNA
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91. Neurons
    6104
92. Photosynthesis
    6053
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)