ok, interesting topic, 1st) No reall doubt that plants are alive, unless the are plstic and live in [insert food type]take aways. They grow, eat, create waste, reproduce etc. they are alive. Now the rest, for the stimulus response there can be a number of reasons, like you have already put. But i dont believe that some apply. at all. sorry. plants often rely on outside elements to carry out there reproduction or to transport their seed. They must be aware of those things to use them not only insects/wind but birds mammals etc. uh, well, thats one way of looking at it, that sort of stimulus response can be put down to evolution, eg fisrt plants grow, 2 are exactly the same, APART FROM, one have colourful flowers/interesting smell/etc the other doesn't, the colourful one gets polinated, the other doesn't, simple as that, the most effiecient system rules. the plants don't just decide to change their 'outfit' as it were. its the same with all animals, its evolution. now with that though, im not saying they are not aware, but its a different time scale, um, as example a fly lives for a short time, but it moves damn fast, a tortoise moves slowly, it lives longer (nothing to do with kit kat mini cube thingys). metabolism. plants can live for a vvvveeerrryyy long time, and, if you lived for a couple of hundred years, in the same place, doing the same stuff alll the time, even if you a hyperactive little sappling, even after a few years you wouldnt notice much, you'd either beome insane or go into yourself. it's almost like the frog and the boiling water, if you put a frog into boiling water, it would leap out, but if you put it into cold water and then raised the temperature, kaching, boiled frog. Soooo, even if plants are very conscious of themeselves and their world, they may have their heads in the sky, and not notice anything.