Which statement describing the cells in a body system is correct?
a. Each cell in the system is identical to the other cells in the system, and each cell works
independently of the other cells.
b. Some cells in the system may be different from the other cells in the system, but all cells are
coordinated and work together.
c. Each cell in the system is different from the other cells in the system, and each cell works
independently of the other cells.
d. All cells in the system are identical to each other and work together.