Levels of Organization

cells:the basic unit of life

leaf cell,stem cell,rootcell

stem cell

leaf cell

root cell

tissue: is a group of cells that work together to get one job done

  • muscle,root hair,lungs

muscle  cell

root hair cells

lung cells

organs:self-contained and has a specific vital function, such as the heart or liver in humans


heart cell

organ system:it is a group of organs that work together to do one or more jobs


organisms:are all living things


population is the amount of things in a certain place


ecosystem: is where a living think lives

rain forests


Each level works together because each level has its own job to do in the body.If any piece stopped working then the body would not work.You need everything in your body to work in order for u to move and stay healthy.You just cant wake up one morning and say hey I don't need you quiet working.