Hierarchical organisation

• Multicellular organism


  An organism made up of many types of cell
• Cell


  The smallest unit of an organism
• Tissue


  Group of similar cells that work together to perform a particular function
• Organ


  Group of different tissues working together to carry out a job
• Organ system


  Group of different organs that work together to perform a certain function
• Organism


  Group of organ systems that make an individual