After elongation, plant cells begin to
die
photosynthesize
differentiate
germinate

Elongation is a developmental process which is regulated by light and phytohormone. After elongation, plant cells begin to differentiate.  During the period of differentiation cells of the root and the shoot apical meristems and the cambium mature, the cells cell evolve in to a specialized cells and begin to take on their individual functions.

well, since there is no answer choices, i will give an answer on how it works : )

the two objects are placed together. energy will always be transferred from the hotter object to the cooler object until they are equal. hope this is close to one of the answer choices : )