I think it's actually a solid suspended in a liquid. Or something. If you were looking for a real technical answer.
a coloidal suspension? apples aren't really exatly a solid either. nor are you or i. nor any living substance or organsim. although it can also be argued that life like proccessess can go on in an aquious medium. life as we 'know' is even requires one. generaly this is contained within thin membrains called cell walls. the only time in real life you deal with absolute solids or liquids is when you're talking about minerals, or something you play with in chem lab. =^^= .../\...
Apples can't eat other apples. Tomatoes, on the other hand, can eat other tomatoes. After all, there's never been an "Attack of the Killer Apples" movie. At least I don't think so.
we could always make one. i remember the making of the celery stalk that ate seatle. i was in PorSFiS at the time. well actualy i think it was made shortly before i joined. also i think killer tomatoes itself was given birth to by fandom. =^^= .../\...