Jillian made a model of an animal cell. She used a round balloon to represent the cell membrane. She pushed objects like marbles
and rocks into the balloon to show cell parts, then filled it with water to show fluid inside the cell. What is a limitation of Jillian's cell model?
It does not make up the tissues of a living thing.
It does not show the functions of the cell parts.
It is larger than a real animal cell.
It is more complex than a real animal cell.
Scientific theories can never be proven true beyond all doubt; they can only be supported by a wide body of evidence. Only one of the statements that follow uses the term theory in its correct, scientific sense.