what mean is the meaning of animal cell wall

Sure enough, animals do not have cell wall. We generally call the outer part . Do you mean shells or exoskeleton? e.g. coral, sponge, barnacle all have exoskeletons

2006-12-04 10:19:54 補充：
sorry, typo:... we generally call the outer part plasma membrane...

animal cells係冇cell wall ga!!!
你要記住..cell wall只係得plant cell先會有!!