This section of the IBO Curriculum is based on The Tree of Life Project (ToL) that provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history that illustrate the genetic connections between all living things..Students should have a working knowledge of the structure and function, evolutionary and ecological relationships among typical organisms of the following groups identified in the IBO Curriculum. Knowledge of scientific terms will not be required for successful solution of the tasks. However, competitors should know what the named representatives of genera mentioned below look like. For each of the required organisms below, you may click on the name and see a representative sample.


  • Bacteria (Eubacteria)

      Agrobacterium, Anabaena, Escherichia, Rhizobium, Salmonella, Bacillus, Streptomyces, Thermus

  • Archaea

Methanobacterium, Halobacterium, Thermoplasma, Sulfolobus

General Information

  • Encyclopedia of Life: Working toward the goal of an electronic page for every organisms on the Earth.
  • Biosystematics Flashcards: Series of Genus names and photo of the organism.
  • Animal Diversity Web: Online resource designed both as an encyclopedia for exploring biodiversity and for use in formal, inquiry-based education.
  • Ethnobotany: Introductory lesson on Ethnobotany. The Classification of Plants section provides students with the basics of ethnobotany.
  • Bugguide.Net: Online community of naturalists who share our observations of insects, spiders, and other related organisms.
  • Red Planet, Inc.: Collection of photos of insects, trees, and plants.
  • Introduction to Archaea: Overview of Archaea.
  • Introduction to Bacteria: Overview of Bacteria with links to other resources.