Insoluble cellulose strands remain intact and thats the only thing
They actually divide rarely, which are put in the category of G0 in the cell cycle. in G0, cells are unlikely to divide but still carry out their normal functions. some data suggests that neurons can divide but there is still research going on for this
A successful food web needs to have all of the organisms mostly bigger than the ones that they are eating otherwise the food web wouldnt neccessarily work properly and then the food webs would all be messed up.
