The actively dividing cells, or meristems, control plant growth. Primary (apical) meristems, the dividing tissue at the tips of the roots, grow longer roots, and secondary meristems, the dividing tissue seen in the cross-sections, grow thicker roots.
we can't choose what color we are so they can't change their color I dont know
Hunting is regulated because plants still need to be eaten by the deer. if they arent, a plant species grows uncontrollably and kills off other plants.