organisation

• what is an organelle?

  a specialised unit within a cell which performs a specific function
• what are the multicellular organisms in order?

  cells, tissues, organs, organ systems
• whats the organ system?

  a group of organs with related functions working together to perform certain functions.
• what is the tissues function?

  a group of cells working together to perform a shared function
• what is a cell?


  a basic building block of all living organisms
• What is an ecosystem?

  all living organisms in one area