1. The New AP Biology Exam - A User's Guide

  2. Natural Selection

  3. Examples of Natural Selection

  4. Genetic Drift

  5. Evidence for Evolution

  6. Essential Characteristics of Life

  7. Unit 1 Review - Natural Selection

  8. Phylogenetics

  9. Speciation and Extinction

  10. Speciation

  11. Evolution Continues

  12. Abiogenesis

  13. The Origin of Life - Scientific Evidence

  14. Unit 2 Review - Speciation

  15. Gibbs Free Energy

  16. Life Requires Free Energy

  17. Photosynthesis and Respiration

  18. Environmental Matter Exchange

  19. Cell Membranes

  20. Transport Across Cell Membranes

  21. Compartmentalization

  22. Homeostasis Preview

  23. Positive and Negative Feedback Loops

  24. Response to External Environments

  25. Biotic and Abiotic Factors

  26. Homeostatic Evolution

  27. Homeostatic Disruptions

  28. Plant and Animal Defense

  29. Development: Timing and Coordination

  30. Mechanisms of Timing and Control

  31. Behavior and Natural Selection

  32. Unit 4 Review - Homeostasis

  33. Genetics Preview

  34. DNA and RNA - Part 1

  35. DNA and RNA - Part 2

  36. Cell Cycle, Mitosis and Meiosis

  37. Mendelian Genetics

  38. Advanced Genetics

  39. Gene Regulation

  40. Unit 5 Review - Genetics

  41. Signal Transmission and Gene Expression

  42. Genotypes and Phenotypes

  43. Mechanisms that Increase Genetic Variation

  44. Viral Replication

  45. Evolutionary Significance of Cell Communication

  46. Cell Communication

  47. Signal Transduction Pathways

  48. Effects of Changes in Pathways

  49. Information Exchange

  50. The Nervous System

  51. Biological Molecules

  52. Cellular Organelles

  53. Cellular Specialization

  54. Organ Systems

  55. Communities

  56. Enzymes

  57. Ecosystems

  58. Cooperative Interactions

  59. Populations

  60. Ecosystem Change

  61. Cellular Variation

  62. Genotype Expression

  63. Population Variation

  64. Biodiversity

  65. Comparing DNA Sequences