Answer:
Cerebrum is the largest and most complex region.
The cliellum is located on the anterior end of the earthworm. The anterior end of the earthworm is used in mating, and the mouth and brain are also located in the anterior end.
The genetic material of the cell is duplicated during S phase of interphase just as it was with mitosis resulting in 46 chromosomes and 92 chromatids during Prophase I and Metaphase I.