What is the relationship between cellls and organisms?

The relationship between cells and organisms is that organisms are made of cells. This is one part of the cell theory.

The cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century.

it would be c. xylem.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .