At the head of the planarian there is a brain under the eyespots. From the brain, there are two nerve cords, which connect at the tail. There are many transverse nerves connected to the nerve cords, which make it look like a ladder. With a ladder-like nerve system it is able to respond in a coordinated manner.
Adventure mode. From Diablo Wiki. Adventure Mode or AM is the primary end game type of game mode introduced into Diablo 3 in the Reaper of Souls expansion pack. Campaign Mode or Story Mode is the other primary game mode, where players must progress through the acts in order, complete quests, talk to NPCs, watch cut scenes, etc.
1 These are the most popular Diablo III Demon Hunter builds and skills used by level 70 Demon Hunters in Diablo III PC Patch 2.3, in the Diablo III: Reaper of Souls expansion. 2  They are calculated from data gathered on more than 6 million Diablo III characters.