1. PART A: Which of the following best identifies the
central idea of this text?
OA. Living creatures have thousands of different
cells with genes that determine cell functions
and growth.
B. The body produces less cells as you get older
because adult cells do not need genes to give
them instructions.
OC. Each cell in the human body is unique and stem
cells can turn into any cell at any point in time
to replace weak cells.
OD. Stem cells are different from other cells
because they stop copying other cells once a
baby is born.