Cell organisation

• What is an organ system ?

  A group of organs that work together to perform a specific function.
• What is an organ ?

  A group of tissues that perform a specific function.
• What are the levels of organisation in organisms, from least complex to most complex ?


  Cell

  • tissue
  • organ
  • organ system
  • organism.
• What is a tissue ?

  A group of cells that perform a specific function.