A student removed one celery stalk from a celery plant. The stalk was placed in a beaker containing blue dye. After two hours, the celery stalk was taken out of the blue dye and sliced into sections. What do the blue circles in the cut sections of the celery stalk indicate?
- Aposition of the cortex cells
- Bposition of the palisade cells
- Cposition of the phloem cells
- Dposition of the xylem vessels