level of organisation
level of organisation in organism
organelle , cell , tissue , organ , organ system , organ
what is organelle
structures within cells that carry out a particular function
cell
smallest living unit of an organism
tissue
a group of cell working together to carry out a particular function
organ
a group of tissues working together to carry out a particular function e.g liver
organ system
a group of organs working together to carry out a particular job
e.g. immune system