Answer: Atoms, cells, tissues, organ, organ system, organism
Explanation:
The smallest level of the organisation is Atoms. This is the base for all the substances and organisms on earth.
The next level is the cells which is the structural and functional unit of life. The smallest organism that can survive on its own is a cell.
The cells then combine to form a tissue that perform similar function. The tissues combine together to form organ.
Different organs of the body perform different functions such as stomach perform digestion.
The organ system combinely perform similar functions. Such as respiratory system has different compartments performing similar functions.
Organism consist of different organs, organs system and they combinely form a body.
