levels of organisation

• what is the level of organisation for organs ?

  cells, tissues, organelles, organs, organ system
• what is a tissue ?

  A group of cells that perform a specific function
• what are examples of plant tissues ?

  xylem tissue, phloem tissue
• what is an organ ?

  a group of different tissues that perform a specific function
• examples of organs in humans and plants ?

  Humans: lungs Plants: Leaves
• what is an organ system ?

  A group of organs that perform a specific function