Can someone me asap with these i do not

1. Segmentation refers to the division of an animal and plant body plans into a series of repetitive segments. This is what is fascinating about those three "animals"-- if the scorpion loses its' tail, it'll grow back or if a worm is cut in half, it'll still survive. 
Unfortunately, I can't really help with the second question but I hope my answer for the first question did :)