What is the process of change observed in embryonic cells according to their specific functions called?

When do cells regenerate?

Through which process do tissues, organs, and organ systems form from the new cells generated by the zygote?

Living differentiated cells, that by now have lost the capacity to divide, can regain the capacity of division under certain conditions. This phenomenon is termed as $.........$.

Which of the following is formed after dedifferentiation?

Formation of interfascicular cambium from fully developed parenchyma cells is an example for