green plants perform photosynthesis to provide food for themselves
photosynthesis is process. plants has not leaves_to_gather_light photosynthesis is process_by_which_leaf_makes_food. blueberries is food. general_photosynthesis is not physiological_function. general_photosynthesis is production. photosynthesis is not process_by_which_leaf_makes_food. plants has leaves_to_gather_light photosynthesis_in_plants is physiological_process. general_photosynthesis is physiological_function.