BIODIVERSITY

• Three levels of biodiversity

  • Ecosystem
  • Species
  • Genes
• Biodiversity


  It is generally refers to the variety and variability of life on Earth.
• Biodiversity


  Variability among living organisms from all sources including terrestrial, marine, and other aquatic ecosystems and the ecological complexes in which they are part; this includes diversity within species, between species and of ecosystems.
• Genetic diversity


  It serves as a way for populations to adapt to changing environments.
• Genetic diversity

  Genes are the basic units of all life on Earth. They are responsible for both the similarities and the differences between organisms.
• Species diversity


  It is the number of different species the are represented in a given community.
• Species diversity


  Is the variety of species within a habitat or a region. Some habitats such as rainforests and coral reefs, have many species.
• Ecosystem diversity


  It is the variation in the ecosystems found in a region or the variation in ecosystems over the whole planet.
• Ecosystem diversity


  Is the variety of ecosystems in a given place
• An ecosystem is a community of organisms and thier physical environment interacting together . An ecosystem can cover a large area, such as a whole forests, or a small area, such as a pond.
• Classification of organisms (order)

  • Species
  • Genus
  • Family
  • Order
  • Class
  • Phylum
  • Kindom
• A genus is a larger group of related species that share common features but may not be able to interbreed.
• Eukaryotic cells


  Cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled.
• Bacteria


  an example of prokaryotes
• Prokaryotic cells


  do not contain a nucleus or any other membrane-bound organelle.
• Eukaryotes


  Are humans considered prokaryotes or eukaryotes?
• Animalia


  In what kingdom are humans classified?
• Plantae


  In what kingdom are plants classified?
• Super kingdom

  1. Prokaryota
  2. Eukaryota
• Prokaryota

  • Eubacteria
  • Archaebacteria
• Eukaryota

  • Protozoa
  • Chromista
  • Fungi
  • Plantae
  • Animalia
• Classifications of human


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• Three domain system


  Developed by Carl Woese, is a system for classifying biological organisms. Over the years, scientists have developed several systems for the classification of organisms. From late 1960s, organisms had been classified according to a Five Kingdom System. This classification system model was based on principles developed by Swedish scientist Carolus Linnaeus, whose hierarchical system groups organisms based on common physical characteristics.