WHAT IS AT THE BOTTOM?
CELLS - They are the fundamental building blocks of life
WHAT IS SECOND FROM THE BOTTOM?
TISSUES - a group of similar cells working together
WHAT IS THIRD FROM THE TOP?
ORGANS - a group of tissues working together
WHAT IS SECOND FROM THE TOP?
ORGAN SYSTEMS - a group of organs working together
WHAT IS AT THE TOP?
THE ORGANISM - a group of organ systems working together