cell
organism
unicellular
multicellular
tissue
organ
organ system
specialization
life processes
How do unicellular and multicellular organisms differ?
How are unicellular and multicellular organisms the same?
How would you analyze the ways organisms sustain life?
What are the major systems of the human body and what are their purposes?
How are parts of the human body both independent and interdependent?
What features of the human body are common to all humans?