@Volunteers Beware that I am none of the biological magnates. Nor a philosopher. This is just a sign of curiosity. And, I want only an intuition that enables me to see the difference.
As far as I know, the growth of the plants and their metabolism is induced by Chemical laws and physical laws (govern matter and energy). Whatever, absorbing sunlight, photosynthesis, pollination etc are persuaded by physical and chemical laws. And, it is not surprising because all matters experience Physical and Chemical laws. The Food going upward in a plant is illustrated by Capillary Action. Pollination is influenced by wind and like that.
In my opinion, the chief thing which differs us from non-living things is the existence of 6 senses. At least, (various) animals have some of these. But as far as I know, plants possess none of that. So, after all, why are they classified in group of Living things? (Or, why plants' behaviour is not classified in Physics and Chemistry in stead of Physiology?)